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In fact, a recent study published in the British Journal of Nutrition concluded that an increase in lycopene consumption is associated with a lower risk of developing cardiovascular disease. Unfamiliar with this fatty food? Ghee is a form of clarified butter that regularly makes an appearance in Indian food as well as on our list of fat-burning keto diet foods. In addition to its abundance of fat, ghee is also high in fat-soluble vitamins such as vitamin A, vitamin E, and vitamin D. You can, of course, buy ghee at the grocery store or you can make your own: The Easiest Way to Make Ghee at Home. These mini cabbages are a winter and fall favorite that you can enjoy all year-round on the ketogenic diet. Brussels sprouts are chock-full of nutrients including vitamin C, vitamin K, folate, and phosphorus, so don't be afraid to dig in. Asparagus is a low-carbohydrate vegetable that you should make an effort to incorporate into your diet, whether you are going keto or not. The stalky green is rich in glutathione, a compound with major cancer-fighting benefits. A study published in the journal Cancers found that glutathione participates in cell protection and regulation. Caffeine-fiends are in luck: coffee is allowed on the ketogenic diet. The bad news? Sugar and milk are both off-limits. If you can't stomach the idea of drinking your coffee black, you can make bulletproof coffee, which is made by adding butter and coconut oil or concentrated MCT oil to your morning brew. Just make sure you're choosing the right keto add-in, because some keto creamers are on our list of 7 Things You Should Never Add to Your Coffee. While certain diets are lauded for their dramatic weight loss effects, that doesn't necessarily mean they're good for your heart health. With 1 in every 4 deaths in the U.S. Here, Dr. Elizabeth Klodas, MD, FACC, cardiologist, and founder of Step One Foods, addresses three popular weight-loss diets that could be detrimental to your heart. In conclusion, she shares which diet is the best for both your heart and overall health. Before you go, don't miss 15 Underrated Weight Loss Tips That Actually Work. Worst diets for heart health. The keto diet, and even the paleo and Atkins diets, fall under the same category of diets, according to Klodas. They're all high in animal protein and fat but low in carbohydrates. There are a few points of concern here with these types of diets. First, low-carb diets have been shown to impair vascular function, meaning the arteries can't dilate properly, resulting in insufficient blood flow to the heart, the cardiologist says.|Plus, sugar is often added to make up for a loss of flavor and texture, so some actually have more sugar than full-fat dairy. Resist shredded cheese, too, as it contains a carby potato starch that keeps it from sticking together. Macadamia nuts, pecans, walnuts, almonds, flax seeds, and sunflower seeds. Be careful when eating nuts, as they’re calorie-dense and can easily put you over your carb limit for the day. Cashews, pistachios, and chestnuts are on the higher end for carbs in nuts, and should be avoided. Avocados are low in carbs and have great fat and fiber content; berries are OK since their carb content is negligible; and 1 cup of tomatoes has just 6g of carbs. Fruits in general, dried or otherwise, are forbidden since most have high sugar and carb content. Water, sparkling water, seltzer, black coffee, unsweetened and herbal teas, unsweetened nut milks, wine, light beer, and liquor.
A ketogenic diet requires that fat comprise 60 to 80 percent of your total calories. Protein makes up about 20 percent, while 10 percent comes from carbs. Generally speaking, it’s best to keep carb intake between 20-30 grams per day in order to maintain ketosis. That’s the equivalent of about half a medium bagel. If this sounds like Atkins, it’s close, but “ketogenic diets tend to be more severe in carb restriction and have a more moderate protein restriction,” says Spencer Nadolsky, D.O., author of The Fat Loss Prescription. Though you can eat bacon on a ketogenic diet, the rest of the spectrum is limited. Starchy vegetables like potatoes, corn, and squash are too high in carbs. Same with most fruits. Milk, beans, rice, pasta, bread: nope. However, bacon is still heavily processed and has been linked to an increased risk of cancer and heart disease, so you may not want to eat it at every meal. To stay as healthy as possible, keto dieters should eat plenty of low-carb vegetables like red bell pepper, kale and cauliflower. It should be noted that the keto diet may not always trigger weight loss, especially if you already have a low body fat percentage. 4 Reasons Why You Should Follow a Keto Diet? Weight loss isn’t the only reason to follow a ketogenic diet. Let’s look at some of the other benefits. This is why, despite information that states a certain amount of glucose is needed per day for optimal brain function, a keto diet can actually support cognitive function. In fact, some people report improved focus, concentration and mental alertness when they enter ketosis. A high-carb diet (especially when it comes to dairy products and refined sugar) has been shown to trigger sebum (oil) production in the skin. Removing sugar from your diet may also support skin health. Since high fat foods are also richer and more satiating than carbs, you’ll also feel full with smaller portions. In order for the keto diet to work, you’ll need to know if you’re in ketosis or not. On top of that, it eliminated spikes in blood sugar, kept his appetite in check, and allowed his body to burn its own fat as fuel. After Noakes’ diabetes had reversed course, he wrote about it for Discovery Health News; that triggered a national debate across South Africa, a country plagued by an epidemic of diabetes and its associated conditions. Last year, Noakes published his fourth book, The Real Meal Revolution, which explains why high-fat diets work and how to incorporate them into everyday life. “It’s gone viral,” he says. Though higher-fat diets go by many names-most recently, the well- known Paleo Diet, as well as the Zone and the South Beach Diet, both of which restrict sugary foods and refined carbs-the Ketogenic Diet has taken the zero-carb and high-fat stance to a whole new level. It’s especially resonated in the biohacker community of Silicon Valley. From an evolutionary standpoint, ketones-molecules formed by the breakdown of stored fat-are a very important fuel.|Make sure to avoid these fats and oils. In general, you want to avoid most vegetable and seed oils especially those high in omega-6 which can cause inflammation in the body. Leveraging the fat is one of the hardest macros to figure out on a keto diet and too many of us believed we could eat all the fat like everyone else, but the weight didn’t budge. Everyone is different and has a different fat threshold. Figuring out how much you need is where I can help you. The classic keto diet can work for some people, but for many of us older than 30, the higher fat of 75% is just too much on a daily basis to burn the fat on our body. The fat you’re consuming could be stalling you from losing the fat on your body and it can be frustrating when you feel like you are doing everything right. Fat can still be enjoyed, but just needs a few tweaks to customize it for your body to lose weight. That’s why our Stall Buster program works! Our weekly quiz will determine if you need the 50%, 60% or 70% fat meal plan! Learn more Here about our 4 Week Self-Paced Stall Buster Course! A balanced ketogenic diet includes healthy fat, but prioritizes protein for satiation. If you’re still feeling a little unsure how to go about starting a balanced ketogenic diet for weight loss, my FREE Keto Basics Course will help you learn all you need to know. After the quick 15 minute course, you will receive a free 7 day keto diet meal plan to get you started! Register Here for the FREE KETO BASICS COURSE. The keto diet - what is it? Little is known on whether or not long-term adherence is safe or if the diet is safe for everyone in the short term, especially those with pre-existing health conditions. Why was the keto diet developed? The ketogenic diet premiered in the medical setting in 1921 by Dr. Russel Wilder. The diet was originally intended to treat children diagnosed with epilepsy. The anti-seizure effects were first noticed in response to fasting. However, the ketogenic diet was crafted to support growth and development in children without long periods of not eating. What are macronutrients and why are they important? Recently the ketogenic diet (also known as the keto diet) has risen to fame as a fad diet that claims to treat obesity. Calories in food come from three different sources: fats, carbohydrates and proteins. These three sources are called macronutrients. According to the USDA, the standard American diet follows a macronutrient composition of 40 percent fat, 11 percent protein and 48 percent carbohydrate.|“Chances are if you’re following a ketogenic diet you will need to prepare most, if not all, of your own meals and snacks from scratch, so simply season with salt,” says Tucci. Many followers of the keto diet try it because they’re hoping to use it therapeutically for a medical condition. If that’s you, talk to your doctor first and make sure they’re on board with your plan - especially if you’re also taking medication, says Clevenger. “Some medications may need to be adjusted by your healthcare practitioner as your signs and symptoms improve,” she says. Just one example is insulin, as a lower dose may be needed now that you’re severely limiting carbohydrates. Vegetables have carbohydrates. And that means that you have to watch how much you eat - even lettuce. If you're not careful or are eating them as a free-for-all, you could overconsume carbs, and thus get kicked out of ketosis. Whether you prefer this veggie as a mashed potato stand-in or masquerading as rice, cauliflower is an ideal substitute for many starchy meals and snacks. With just two measly grams of sugar in an entire cup, it is safe to eat with abandon. Scrambled, boiled, poached, or fried, all varieties of eggs are welcome on the keto diet. With a healthy dose of both fat and protein, the ratio of macronutrients makes this protein one of our go-to keto diet foods. Mushrooms' meaty texture makes them one of the most satisfying vegetables around. They also happen to be particularly low in sugar and carbohydrates, a dream come true for people going keto. This tropical oil has faced some controversy in recent years, but its high fat content makes it a staple for keto dieters. Whether you use it in a salad dressing or to saute your favorite cut of steak, coconut oil is a ketogenic mainstay. When it comes to maximizing your fat intake, hard cheeses like cheddar have an edge over softer options like goat or feta.
Who It's Best For This is for those who want a flexible approach to healthy eating that is sustainable long term, notes McDonough, and who want more emphasis on Mediterranean elements like nonprocessed food and high nutrient density. If you’re a huge fan of salmon and sardines, this may be your favorite keto choice. Risks to Note The standard Mediterranean diet - which is not keto, thanks to its amount of whole grains and fruits - has many elements that are worth shuttling into a keto plan, so the risks are minimal, says McDonough. If you want to get truly Mediterranean, incorporate social time into your meals, rest after eating, and get regular physical activity. How It Works The latest revamp of the keto diet is Keto 2.0, which is gaining traction for those who feel the standard keto diet is too restrictive and difficult to sustain in the long run, says Penny Scholl, RD, in Avon, Massachusetts, who covers keto approaches on her blog, Remake My Plate. Grains and legumes contribute a significant amount of carbs to the diet. If you eat them while following the keto diet, you risk throwing your body out of ketosis. Keto and paleo diets strongly discourage the intake of added sugars. For both diet plans, this largely falls under their shared message of avoiding heavily processed foods in general. However, paleo dieters are a bit more flexible with this rule, as unrefined sugar sources like honey and maple syrup are still permitted. Keto, on the other hand, doesn’t allow any added sugar sources, refined or not, due to the high carb content of these foods. In line with their shared goal of achieving optimal health, both paleo and keto diets encourage the intake of unrefined, healthy fats. Both diets also recommend moderate-to-liberal amounts of selected refined oils, such as olive and avocado oils, as well as nuts, seeds and fish. Keto places very heavy emphasis on fat in general, as it is the cornerstone of the entire diet. Paleo, while not necessarily a high-fat diet, uses this recommendation to support overall health. One of the primary reasons for the popularity of keto and paleo diets is the notion that they will promote weight loss. Unfortunately, there is limited research available for how effective these diets are for sustained, long-term weight loss. However, some short-term research is promising. A small study of postmenopausal, obese women following the paleo diet showed a 9% weight loss after six months and a 10.6% loss at 12 months. This may have been because a high intake of fat usually leads to a decrease in appetite and fewer overall calories consumed. It may also be that the process of ketosis is leading to more efficient elimination of the body’s fat stores. The exact reason is still unclear.
Pin it to save for later! 7. Portions Do Matter. 6 above. Even though calories and portions are not the primary focus of a ketogenic lifestyle, they still matter. It’s still possible not to lose weight, or even gain weight, on keto if you consume too much - this would be the case with any diet. The key to remember is that fat is a lever. Fortunately, ketosis inherently reduces hunger and cravings, so you tend to eat less anyway. Many people find that eating low carb foods keeps their portions under control naturally, but if that doesn’t happen for you, you may need to pay attention to them. 8. Eat Only When Hungry. A common question I get is whether you should eat when you are not hungry. Ketosis acts as a natural appetite suppressant, so you may find that you don’t get hungry as often, or not as ravenously so. There is no need to eat when you are not hungry! Some people use the keto diet to stay at a healthy weight. Unlike glucose, ketones can’t be stored as fat because they aren’t metabolized the same way. This might seem counterintuitive if you associate keto with piles of bacon and cheese. But in reality, the keto diet can support weight management by burning fat and curbing cravings. The trick is to primarily get your fats from quality sources like nutrient-dense whole foods and pay attention to how you feel. Inflammation is your body’s natural response to an invader it deems harmful. Too much inflammation is bad news because it increases your risk of health problems. A keto diet can reduce inflammation in the body by switching off inflammatory pathways and producing fewer free radicals compared to glucose. What is Metabolic Flexibility and How Can You Achieve It? The keto diet for beginners seems like all fat, no carbs and lots of bacon and cheese-but that’s not the case. There are different approaches to this style of eating, and it’s a good idea to find what works for you.|The keto diet, short for "ketogenic," involves eating a high amount of fat, a moderate amount of protein and very few carbs - even fruit is off the table. As with any fad diet, adherents tout weight loss, increased energy and greater mental clarity among the benefits. But is the keto diet all it's cracked up to be? Not precisely, nutritionists and dietitians say. Low-carb diets like the keto do appear to lead to some short-term weight loss, but they're not significantly more effective than any other commercial or self-help diet. And they don't appear to improve athletic performance. Melinda Manore, a professor of nutrition at Oregon State University. And as with other fad diets, people typically regain the weight once they go off the diet. So, what is the keto diet? The keto diet was originally designed not for weight loss, but for epilepsy. In the 1920s, doctors realized that keeping their patients on low-carb diets forced their bodies to use fat as the first-line source of fuel, instead of the usual glucose. On the other hand, you may be skipping veggies altogether if counting every baby carrot is getting too complicated. But it’s important to get in vegetables (these contain fiber that prevent constipation, a potential side effect of keto) while minding portions and properly counting carbs. Go for nonstarchy options in a rainbow of colors for a variety of nutrients, says Tucci, like leafy greens, cucumber, tomato, broccoli, cauliflower, bell peppers, and asparagus. When it seems as if the sole goal of keto is to drastically cut carbs, the rest can feel like an afterthought. “Reducing your carbohydrate intake is great, but focusing on higher-quality products when budget allows will help improve your health, too,” says Clevenger. That means choosing omega 3-rich foods, like wild salmon, grass-fed, local, or organic meats, and snacking on whole foods rather than processed keto-approved treats. It also means trying to follow a balanced diet as best you can by incorporating as many nutrient-rich fruits and veggies as you can. Many registered dietitians aren’t a fan of keto because it may lead to nutrient deficiencies. You can help avoid these by working with an RD yourself as you follow keto.|Why is the keto diet recommended for people with diabetes or prediabetes? Because the keto diet helps to reduce blood sugar and insulin levels, it is now being used for people with type 2 diabetes and for people with prediabetes to lower their hemoglobin A1C to a healthy level. Who else can benefit from this diet? Women with polycystic ovary syndrome who follow a low-glycemic-index diet - a variation of the keto diet that involves eating based on how foods affect your blood sugar level - have also seen positive results. Recent studies show the diet may treat the following alone or have compounding effects with other medical treatments: migraine headaches, brain tumor/cancer, Alzheimer’s, Parkinson’s disease, mitochondrial disease, Lou Gehrig’s disease (ALS), autism, and traumatic brain injury. Overall, more research is necessary. For the general population, is the keto diet healthy? While this diet has been shown to accelerate weight loss and to improve certain health conditions, it has its fair share of critics. Switching from foods that cause chronic illness and make you fat to foods that keep you permanently lean and energetic without getting hungry would seem like a no-brainer. But it’s difficult, and most of us don’t really know what ketosis is like. The average American today is what nutritionists call “a sugar burner.” We ingest carbs for breakfast, so our blood sugar goes up quickly then comes crashing down before lunch, when we get our next carb fix. The process happens over and over again without our bodies entering ketosis. But getting your body to enter full ketosis is no small feat. Imagine forgoing all starchy vegetables, breads, sugary drinks (including fruit juice), pasta-essentially everything that isn’t meat or a non-starchy vegetable. It’s a tall order that only gets taller, because, once you’ve started the process, the body, feeling deprived, undergoes a transition phase often termed the “low-carb flu.” For a few weeks, physical and mental performance-at work, in the gym-dips noticeably and uncomfortably as the body tries to tap its missing fuel source. The effects of maintaining ketosis for long periods of time are unknown. But concerns include the impact on important gut microbes that are likely to be starved of essential fibre required for healthy balance. The potential effect of this on long-term health is still not clear. Most people calling their diet a keto diet are simply following a low or very low carbohydrate diet. Low carbohydrate diets can be helpful, at least in the short term, for some people to lose weight. However, as with the true ketogenic diet, most people can’t stick with a very low carbohydrate diet for long. The latest research shows that it’s the ability to stick to the diet that matters. But it’s worth noting that, as yet, there hasn’t been enough research into the ketogenic diet to support its use in some medical conditions - so people using the diet to treat diabetes or polycystic ovarian syndrome, should consult their doctor before trying it, as it can affect blood sugar levels. ” No one is sure about the president, but his wife, definitely: She’s lost 66 pounds following the Noakes plan. To high-performing athletes, Noakes preaches that the bedrock tenet of endurance athletic nutrition-that winning performance is best fueled by eating lots of carbohydrates-is simply wrong. Instead, he believes athletes can alter their bodies so that their metabolism burns fat as a primary fuel source, a physiological process known as ketosis, either from stored body fat or from the foods they eat every day. For non-athletes and anyone trying to lose weight or keep it off, Noakes’ advice is that eating a high-fat diet, with few if any refined carbs and as little sugar as possible, will switch on the same fat-burning system and keep your body lean and your weight stable without making you hungry. According to Noakes and a growing number of nutritionists, physiologists, and biohackers, when you’re in a state of ketosis-best attained through a strict “ketogenic diet”-good things happen.|If you live with type 2 diabetes, talking about your diet may be an everyday conversation. Our goal is to help you feel more empowered to make the changes that are right for you. We know what we eat affects blood sugar levels. And the ketogenic diet has gotten a lot of press over the past few years. Is the keto diet the right plan to follow if you have type 2 diabetes? What is a diet? Thanks to the many weight-loss plans out there, the word diet tends to be used to describe foods low in calories or plans that help you lose weight. Even so, there is another meaning of this word. Diet also refers to the food and drinks a person eats daily. Diet is more than meal plans. It’s about the connection to eating and nourishing the body. It involves your relationship with food, body image, family, nature, and our food communities. These factors are important when we talk about food and type 2 diabetes.
“As long as carbs stay low enough, which will vary by person but is usually below 50 g a day, one will stay in ketosis,” Kizer says. As a result, you’ll be able to see the effects associated with being in the metabolic state. Who It's Best For This is meant for those who are interested in ketosis but don’t want to be bothered with tracking calories, protein, and fat. Risks to Note The same people who experts say should stay away from keto in general should also avoid this approach, such as pregnant women, people with diabetes who are using insulin or taking hypoglycemic medication, and people with type 1 diabetes who are at risk for ketoacidosis, Kizer says. Lazy keto can also be dangerous if you take it to mean that you sometimes follow a keto diet and sometimes don’t. “Ketosis is all or nothing - you’re either in ketosis or you’re not,” Kizer says. The keto - or ketogenic - diet is popular but unsustainable for many people. It involves eating high fat and low-carb foods, with the aim of burning body fat for fuel instead of glucose. Common reasons for quitting the diet include getting "keto flu," lacking energy, and being too deprived. Visit Insider's homepage for more stories. The keto diet is one of the most popular weight-loss strategies of the moment, despite having been ranked among the worst by the US News & World Report, where it scored particularly low for heart health and sustainability. The keto - or ketogenic - diet requires eating high-fat and low-carb foods: about 20 to 50 grams of carbs a day. To stay under this threshold, followers of the keto diet don't eat traditional carbs like bread, pasta, rice, or potatoes, but also generally avoid fruit, beans, lentils, and starchy vegetables as they are all too high in carbohydrates. The idea is that by cutting out carbs, your body enters ketosis and burns fat for fuel, rather than glucose. Lots of water and other unsweetened drinks to stay hydrated. Tea and coffee are both fine. Perhaps even dark chocolate: Most people suggest sticking to cacao concentrations higher than 70% to 80%, since lower concentrations are too carb-heavy. Other carbohydrates like bread, pasta, rice, potatoes, and wheat-based flour. Anything made with corn, especially high fructose corn syrup and other sweeteners. Legumes like chickpeas and beans of all kinds. These nutrient-rich foods are high in protein and fiber, but the idea with ketosis is to rely more on fat. Many keto dieters limit their protein intake to around 10% to 15% of a day's calories, which means that a single cup of black beans could put you in range of a daily limit. Besides, that cup of black beans also has a hefty dose of carbs. Most fruits. A single apple could put you over your carb count for the entire day. Milk. A cup of whole milk has 12 grams of carbs, while the same amount of whipping cream has less than eight. The diets included the low-carb Atkins, South Beach and Zone diets as well as low-fat diets like the Ornish diet and portion-control diets like Jenny Craig and Weight Watchers. They found that any diet resulted in more weight loss than no diet at all after six months. Low-fat and low-carb diets were pretty much indistinguishable, with low-carb dieters losing 19 pounds (8.73 kilograms), on average, and low-fat dieters losing an average of 17.6 pounds (7.99 kg), both compared to non-dieters. At 12 months, the benefits showed signs of leveling off for both types of diets, with both low-fat and low-carb dieters reporting being 16 pounds (7.27 kg) lighter, on average, than non-dieters. Another analysis of popular diets published in the Annals of Internal Medicine in April 2015 found the Atkins diet to result in more weight loss than simply educating people on portion control, but also noted that most of the studies of this low-carb diet involved registered dieticians helping participants make food choices, rather than the self-directed process by which most people pick up the diets.
For example, instead of getting healthy fats and low carbs from almonds, you can hit your macro amounts with BBQ pork rinds instead. “The main point of dirty keto is that, since the macronutrient amounts it follows support a ketogenic state, it doesn’t matter where those macros come from,” she says. Who It's Best For This variation is for those who need a high level of convenience and lack the time or interest for cooking and meal prep, Nieves says. This may also be the easiest route to follow for those just getting into keto, she adds, since you can stick to keto even when traveling or dealing with a busy schedule - you just need to read package labels carefully rather than going deep into meal planning. Risks to Note Although it does sound fun to get dirty, Nieves cautions that too many ultraprocessed foods - which have additives like sugar, preservatives, and artificial flavors - can lead to nutritional deficiencies over time, and load you up with too much sodium and unhealthy fats. “For example, one cup of cooked chickpeas provides 35 grams of carbs,” Sheth says. If you’re only allowing yourself 50 grams of carbs per day, max, adding beans can mean that will add up fast. The good news? One cup of cooked chickpeas also has 10.7 grams of protein, and 9.6 grams of fiber, all of which are great contributions to your nutritional intake. The bottom line: If you want to incorporate beans into your keto routine, you just need to practice pretty careful portion control. Which beans are the most keto-friendly? ’re taking part in the keto diet. But if you want to spread out your carbs throughout several meals instead of eating them all in one cup of black beans (which would also be fine!), here’s the deal. “The only beans that are super keto-friendly are green beans and black soybeans,” explains Gans. What makes them so special? These diets often put people into a state which is called "nutritional ketosis." In this state, blood levels of ketones are elevated slightly, to around 0.5 mmol/L. Meta-analyses have shown that ketogenic diets can be useful for weight loss. However, compared head-to-head with other diets, the ketogenic diet does not appear to be more beneficial for weight loss or fat loss. So it is not the only diet that should be considered. Although it is not superior to other diets for weight loss, a few aspects of a ketogenic diet may provide benefits for some people. For example, there is some evidence that being in a state of ketosis may slightly suppress appetite and allow people better control over their appetite. Exactly why this occurs is not well understood but may result from the ketones themselves or a massive change in dietary composition that promotes a greater feeling of satiety. One of the most prominent features of a ketogenic diet is a rapid drop in water weight with a ketogenic diet. There’s a question making the rounds on the internet that has a spectrum of answers: Is the keto diet healthy? The truth is, while the little-to-no carb, high-fat diet can dramatically help shed pounds, there haven’t been any long-term, randomized clinical studies to help determine the long-term effects on the body. Most studies to date are smaller scale, and they’re filled with both positives and negatives. Some suggest it improves blood sugar in diabetics and lessens cardiovascular risk factors, like obesity. Others report spikes in “bad” cholesterol, heart problems, and hypoglycemia. To add to the uncertainty, its effectiveness as a weight loss treatment hasn’t even been clinically proven, experts have said. What’s left is anecdotal evidence and people from all corners of the web - including physicians, nutritionists, and celebrities - raving or ranting about it. “I am open-minded when patients come to us with diets or nutritional trends, especially because I appreciate that they have taken an interest in their health,” said Neel Chokshi, MD, MBA, an associate professor of clinical medicine and medical director of the Sports Cardiology and Fitness Program at Penn Medicine.
While certain diets are lauded for their dramatic weight loss effects, that doesn't necessarily mean they're good for your heart health. With 1 in every 4 deaths in the U.S. Here, Dr. Elizabeth Klodas, MD, FACC, cardiologist, and founder of Step One Foods, addresses three popular weight-loss diets that could be detrimental to your heart. In conclusion, she shares which diet is the best for both your heart and overall health. Before you go, don't miss 15 Underrated Weight Loss Tips That Actually Work. Worst diets for heart health. The keto diet, and even the paleo and Atkins diets, fall under the same category of diets, according to Klodas. They're all high in animal protein and fat but low in carbohydrates. There are a few points of concern here with these types of diets. First, low-carb diets have been shown to impair vascular function, meaning the arteries can't dilate properly, resulting in insufficient blood flow to the heart, the cardiologist says.|Plus, sugar is often added to make up for a loss of flavor and texture, so some actually have more sugar than full-fat dairy. Resist shredded cheese, too, as it contains a carby potato starch that keeps it from sticking together. Macadamia nuts, pecans, walnuts, almonds, flax seeds, and sunflower seeds. Be careful when eating nuts, as they’re calorie-dense and can easily put you over your carb limit for the day. Cashews, pistachios, and chestnuts are on the higher end for carbs in nuts, and should be avoided. Avocados are low in carbs and have great fat and fiber content; berries are OK since their carb content is negligible; and 1 cup of tomatoes has just 6g of carbs. Fruits in general, dried or otherwise, are forbidden since most have high sugar and carb content. Water, sparkling water, seltzer, black coffee, unsweetened and herbal teas, unsweetened nut milks, wine, light beer, and liquor. Ketosis is a natural metabolic state in which the body burns fat rather than carbs. ’s the primary reason why people start it,” says Los Angeles-based Franziska Spritzler, RD, founder of Low Carb Dietitian. There are some other researched benefits beyond weight loss, including possibly acting as a mood stabilizer in those with bipolar disorder (per a very small study in Neurocase) and, more rigorously studied, lessening epileptic seizures (according to a study published in May 2016 in Epilepsy & Behavior). But not everyone’s a fan. “For most people, going keto means jumping on the diet-of-the-moment bandwagon,” says Jackie Newgent, RDN, a culinary nutritionist in New York City and the author of The All-Natural Diabetes Cookbook. “For most, it’s a fad diet that will offer temporary results.” That runs counter to Newgent’s usual advice to find an eating plan you can follow for a lifetime. She also worries that reducing carbs as much as the original keto diet calls for will cut out nutrient-rich foods, like whole grains, certain veggies, and fruits.|Liver problems. With so much fat to metabolize, the diet could make any existing liver conditions worse. Kidney problems. The kidneys help metabolize protein, and McManus says the keto diet may overload them. Constipation. The keto diet is low in fibrous foods like grains and legumes. Fuzzy thinking and mood swings. Those risks add up - so make sure that you talk to a doctor and a registered dietitian before ever attempting a ketogenic diet. What about the other diets? The popular low-carb diets (such as Atkins or Paleo) modify a true keto diet. But they come with the same risks if you overdo it on fats and proteins and lay off the carbs. So why do people follow the diets? McManus says. Theories about short-term low-carb diet success include lower appetite because fat burns slower than carbs. As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. The keto-buzz is everywhere you look these days. Nutrition coaches are offering keto plans, meal prep companies have debuted keto food lines, and well-renowned blogs are digging in to what this diet is and why people are so dang curious about it. A lot of celebrities are raving about the benefits they’ve seen from shifting to a ketogenic diet, including a few Kardashians, runway models, actors, and athletes. Naturally, when people in the spotlight adopt a specific lifestyle habit, the rest of society becomes interested to try it out too. As a compliment to our stance on keto, I’m hoping to help clear some noise around the keto diet with an exploration of its history, what (and who) it helps, what the long-term prognosis of a ketogenic diet looks like, and how the diet might fit into your life. FIRST THING’S FIRST: WHAT’S KETO? The ketogenic diet is an extremely high fat and low carb diet in which people methodically consume 75% of their calories from fat, 15-20% from protein, and 5-10% from carbohydrates. The keto, or ketogenic, diet, cuts carbohydrates in your diet and promotes fat and protein. Many people who start the keto diet will lose weight in the first month. The keto diet isn't for everyone and can lead to nutrient deficiencies if done long-term. Read on to learn more. Visit Insider's Health Reference library for more advice. Compared to the low-fat craze in the '90s, the ketogenic diet seems to go against all diet logic. Because instead of cutting out fat, you eat large amounts of it for every meal. Research shows that the ketogenic diet can be effective at helping to fight diseases related to obesity. That said, the keto diet is not for everyone. Here's what you need to know. What is the ketogenic diet? The ketogenic diet - keto for short - is a restrictive diet where you replace carbs with fatty foods. For example, carb-rich foods like bread, rice, and potatoes are usually eliminated, or severely reduced, because they'll easily tip you over the limit of 20-50 grams of carbs per day. Who It's Best For This is for those who want a flexible approach to healthy eating that is sustainable long term, notes McDonough, and who want more emphasis on Mediterranean elements like nonprocessed food and high nutrient density. If you’re a huge fan of salmon and sardines, this may be your favorite keto choice. Risks to Note The standard Mediterranean diet - which is not keto, thanks to its amount of whole grains and fruits - has many elements that are worth shuttling into a keto plan, so the risks are minimal, says McDonough. If you want to get truly Mediterranean, incorporate social time into your meals, rest after eating, and get regular physical activity. How It Works The latest revamp of the keto diet is Keto 2.0, which is gaining traction for those who feel the standard keto diet is too restrictive and difficult to sustain in the long run, says Penny Scholl, RD, in Avon, Massachusetts, who covers keto approaches on her blog, Remake My Plate. The ratio of fat to carbs and protein is 4:1. The goal of the ketogenic diet is to burn fat for energy rather than carbohydrates, resulting in weight loss. And, advocates claim there are many benefits beyond the number on the scale going down. Health & WellnessI tried the ketogenic diet for 30 days. What are the pros and cons? Those following keto tend to have a higher level of satiety and reduced cravings during the day. A few studies have shown that the diet may promote weight loss, lower blood sugar and increase insulin sensitivity in diabetics. It has also shown to improve LDL cholesterol levels and regulate insulin, increase mental focus and boost energy. On the flip side, it’s very hard to 100 percent commit to the diet, and for it to properly become a lifestyle change. Going out to eat, attending events and parties will be a lot more difficult - and this means that (similar to Atkins!) many people gain weight back.
Cardiologists are still debating the long-term effect of low-carb diets on heart health. Dietitians do not recommend the diet if you have an eating disorder or a history of eating disorders. Restricting your diet can make the problem worse and lead to bingeing or other excessive behaviors. It also does not allow you to follow mindful eating or Intuitive Eating principles. Those that have medical conditions affected by fat intake, like pancreatitis, should avoid following the keto diet. If you are considering the keto diet, we recommend that you talk to your physician and care team. Welldoc’s Registered Dietitians believe that eating a well-balanced diet and setting SMART goals can help you manage your blood sugars and stabilize your weight. We also know there is not one best diet that works for everyone with type 2 diabetes. Can I stick with this eating plan for the long term? Does this eating plan include a wide variety of foods? Will this eating plan help me develop a healthier relationship with food? What does my physician and care team recommend? Please inform your physician of any changes you make to your diet or lifestyle and discuss these changes with them. If you have questions or concerns about any medical conditions you may have, please contact your physician. In Devine’s experience, this is true whether you take a break for say, a holiday weekend, or even just a meal. “For those who have struggled with sugar addiction and battled getting sugar out of their diet, following a strict ketogenic diet is the first time they don't feel overwhelmed by cravings due to the metabolic shift from glucose for fuel to ketones. Keto cycling or cheat meals are very challenging for this group because as soon as they get a taste of those foods, the cravings hit hard and they have a tough time getting back on the wagon,” she explains. She explains that some people do well knowing they can have a small scoop of ice cream or another non-keto treat on occasion - and that planning for these non-keto foods can make it easier to stay on the keto diet and facilitate weight loss and better blood glucose control. But she admits that for other people, this approach can lead to intense carb cravings, making it difficult to return to the keto diet. A recent review published in the Journal of Clinical Lipidology looked at how low-carbohydrate (10 to 25 percent of total daily calories from carbs) and very low-carb diets (less than 10 percent of total daily calories from carbs, including the ketogenic diet) affected body weight and other cardio-metabolic risk factors, such as blood lipids, glycemic control, and high blood pressure. What the National Lipid Association found was that following a very low-carb diet, such as keto, for an extended period of time had no long-term advantages. What’s more, the keto diet and other carb-restrictive diets actually may severely restrict nutrient-dense foods that can offer cardio-metabolic benefits, explained co-authors Carol Kirkpatrick, Ph.D., R.D.N., Director and Clinical Associate Professor at Idaho State University, and Kevin C. Maki, Ph.D., C.L.S., Adjunct Professor in the Department of Applied Health Sciences at the School of Public Health at Indiana University Bloomington. The review found that while those following keto diets may see more short-term weight loss than those following low-fat diets, after 12 months or more, there is no difference in weight loss.|Besides constipation, crabbiness, and making it difficult for others to make plans with you, keto may lead to other health concerns too. Since research has yet to follow participants for more than a year, it's difficult to say with certainty that other problems (like an increase in LDL "bad" cholesterol) won't arise as well. But the real reason why keto plans fail most of us is that they're not sustainable for the long term. Holidays, vacations, work functions … Any diet that's as extreme as keto - to the point where it's often implemented under the supervision of an entire medical team - won't translate into everyday life. And when it backfires (as it always does), the shame and feelings of inadequacy hit us even harder when we've put so much darn work into it. It's for that last reason alone that I don't recommend the keto diet. It can be so downright discouraging when we "fall off the wagon" that it seems completely pointless to eat healthier at all. Keto diets rely on an extreme technique to (temporarily) move the scale down a few pounds, and basically eliminates all joy associated with eating real food and living life. Since restriction for life is downright impossible: Cut back on ultra-processed, high-carb foods like sugary beverages and tons of refined grains, and fill up on more nutritious carb choices, like veggies, fruit, legumes, low-fat dairy, and 100% whole grains to maximize long-term weight loss, health, and happiness. Want to see what that looks like? Check out this seven-day, 1800-calorie meal plan developed to help you lose weight safely and sustainably. Understandably, readers had a lot to say in response to this piece. You can learn more about Jackie's reasoning and see her replies to the top comments in support of keto here. On the other hand, you may be skipping veggies altogether if counting every baby carrot is getting too complicated. But it’s important to get in vegetables (these contain fiber that prevent constipation, a potential side effect of keto) while minding portions and properly counting carbs. Go for nonstarchy options in a rainbow of colors for a variety of nutrients, says Tucci, like leafy greens, cucumber, tomato, broccoli, cauliflower, bell peppers, and asparagus. When it seems as if the sole goal of keto is to drastically cut carbs, the rest can feel like an afterthought. “Reducing your carbohydrate intake is great, but focusing on higher-quality products when budget allows will help improve your health, too,” says Clevenger. That means choosing omega 3-rich foods, like wild salmon, grass-fed, local, or organic meats, and snacking on whole foods rather than processed keto-approved treats. It also means trying to follow a balanced diet as best you can by incorporating as many nutrient-rich fruits and veggies as you can. Many registered dietitians aren’t a fan of keto because it may lead to nutrient deficiencies. You can help avoid these by working with an RD yourself as you follow keto.|Why is the keto diet recommended for people with diabetes or prediabetes? Because the keto diet helps to reduce blood sugar and insulin levels, it is now being used for people with type 2 diabetes and for people with prediabetes to lower their hemoglobin A1C to a healthy level. Who else can benefit from this diet? Women with polycystic ovary syndrome who follow a low-glycemic-index diet - a variation of the keto diet that involves eating based on how foods affect your blood sugar level - have also seen positive results. Recent studies show the diet may treat the following alone or have compounding effects with other medical treatments: migraine headaches, brain tumor/cancer, Alzheimer’s, Parkinson’s disease, mitochondrial disease, Lou Gehrig’s disease (ALS), autism, and traumatic brain injury. Overall, more research is necessary. For the general population, is the keto diet healthy? While this diet has been shown to accelerate weight loss and to improve certain health conditions, it has its fair share of critics. “The point of keto cycling is to make it easier for someone to follow,” Kizer says. “Every five to six days they can have the carbohydrates they’ve been entirely restricting.” There’s no set protocol of what your carb days should look like, but Kizer warns not to go overboard because that will make it more difficult for the body to return to ketosis. Who It's Best For This is intended for those who have a tough time sticking to keto. “It can be helpful if someone wants to take a break and have carbs,” says Dr. Koche. That may not be easy for everyone. Kizer worries this approach may promote carb bingeing. You may have heard keto cycling recommended for athletes, who use the extra carbohydrates to fuel their workouts or competitions. For instance, that 2019 study in The Journal of Sports Medicine indicated some endurance benefits, but the results are mixed, and a study published in April 2018 in The Journal of Sports Medicine and Physical Fitness, have shown that the keto diet does hinder exercise performance.|What do Silicon Valley tech workers and celebrities like Kourtney Kardashian have in common? They’re fans of the ketogenic diet - the high-fat, low-carb diet that is making waves in the health and wellness world. Not only can the keto diet help you shed a few extra pounds, but some research indicates that the keto diet may help prevent aging-related diseases, reduce “brain fog,” and boost energy. “Ketosis is the goal when eating a ketogenic diet - to shift your energy source from carbohydrates (glucose) to fat (ketones) which helps burn fat,” McKel Hill, registered dietitian and founder of Nutrition Stripped, told Business Insider. The keto diet is known as one of the toughest out there, largely because the standard American diet tends to rely on a heavy dose of carbs and sugar. And if giving up your daily whole-grain bagel isn’t enough, there’s also the keto flu - the withdrawal or transition symptoms some people experience shortly after starting the keto diet.
When you consider all of the grain-based foods and sneaky sources of added sugar, it's easy eat a lot more than the recommended amount. Contrary to what social media hashtags would have you believe, there's not much to suggest that it will improve athletic performance. Keto also ranked dead-last (down with another joy-stealer, the Whole 30 Diet) on the U.S. News and World Report's Best Diets list. The lack of research on long-term outcomes, hard-to-follow regimen, and potential health hazards all alarmed the panel of experts. Science simply doesn't support the notion that keto diets keep weight off in the long run, unlike the evidence-backed Mediterranean-style plans. Ketogenic eating may actually increase your risk for kidney and liver problems, plus osteoporosis. Since carb-filled foods contain the highest amount of water and dietary fiber, it's crucial to consider both the immediate side effects (constipation) and future ones (increased risk of GI cancers and decreased immune function) of cutting them out. The ketogenic diet - better known as “keto” - is having a bit of a moment right now. It’s been wildly popular on social media in recent weeks, and Google searches for keto-related terms have skyrocketed since the new year; celebrities the likes of Tim Tebow and Kourtney Kardashian have touted it as a detox, or a “reset button” for the body. The idea is that you can lose weight by replacing the body’s typical go-to energy source - carbs - with fats. That means its followers are downing things like whipped cream, mayonnaise, butter, and cheese. If that sounds too good to be true, that’s because, well, it just might be. We talked to an expert about how it works, how it’s done, and whether or not it’s worth a try. What exactly is a ketogenic diet? The keto diet is an eating plan that consists of 80 percent fat and little to no carbohydrates.
Of the many benefits of a keto diet, weight loss is often considered No. 1., as it can often be substantial and happen quickly (especially for those who start out very overweight or obese). One of the most studied strategies in the recent years for weight loss is the ketogenic diet. Many studies have shown that this kind of nutritional approach has a solid physiological and biochemical basis and is able to induce effective weight loss along with improvement in several cardiovascular risk parameters. In part, keto diet weight loss is a real thing because high-fat, low-carb diets can both help diminish hunger and boost weight loss through their hormonal effects. As described above, when we eat very little foods that supply us with carbohydrates, we release less insulin. With lower insulin levels, the body doesn’t store extra energy in the form of fat for later use, and instead is able to reach into existing fat stores for energy. Starting out on a new way of eating isn’t easy, and you don’t have to do it alone! Join our private Facebook support group here! There are hundreds of thousands of us in the group waiting to help you. We have people at all stages of the journey, so whether you need a place for keto for beginners, or you’re a more seasoned keto-er looking for others who get it, we’d love to have you in our community. 14. Plan Your Meals. One of the best keto tips and tricks I always tell people is that meal planning is a game changer. Grabbing a bag of chips, a candy bar, or a box of pasta may be easy on a high-carb diet, but sticking to a low carb lifestyle requires more planning. And that’s okay! It’s totally doable and does not have to take hours out of your day. You can make your own plan, whether that’s planning for the week ahead like I do or simply looking at the day ahead in the morning.
If you have something that is a carbohydrate on top of everything else you eat, that will put you over your allowance and you might not get into ketosis. Where most people fail at keto is they go through their day trying to follow the diet, then reach the evening, and realize they didn’t have enough fat and have to drink heavy cream to make up for it. What you should do instead is front load as much of your fat as possible during “breakfast.” For me, that means having four cups of a keto coffee as I work in the morning. That’s usually black tea or coffee with 1 tbsp of butter, ghee, or MCT oil in it. If you want to mix it up a bit, I also like to have mushroom coffee with any of those fats in it, and you can also try MCT oil powder if the normal oil gives you disaster pants. Starting out on a new way of eating isn’t easy, and you don’t have to do it alone! Join our private Facebook support group here! There are hundreds of thousands of us in the group waiting to help you. We have people at all stages of the journey, so whether you need a place for keto for beginners, or you’re a more seasoned keto-er looking for others who get it, we’d love to have you in our community. 14. Plan Your Meals. One of the best keto tips and tricks I always tell people is that meal planning is a game changer. Grabbing a bag of chips, a candy bar, or a box of pasta may be easy on a high-carb diet, but sticking to a low carb lifestyle requires more planning. And that’s okay! It’s totally doable and does not have to take hours out of your day. You can make your own plan, whether that’s planning for the week ahead like I do or simply looking at the day ahead in the morning.
The keto flu occurs in the first days of going keto as your body adjusts to burning fat for energy. Symptoms of the keto flu include fatigue, irritability, nausea, constipation, and dizziness. To avoid or treat the keto flu, stay hydrated, eat more electrolytes, and avoid intense exercise. Visit Insider's Health Reference library for more advice. The keto diet has won wide acclaim for its ability to help people lose weight quickly or manage diabetes. However, these benefits can come with a price - the keto flu. The keto flu is when you experience flu-like symptoms as your body transitions to the new diet. Here is what you need to know about the keto flu from common symptoms, how long it will last, and prevention tips. What is the keto flu? The keto flu is your body's reaction to the keto diet's extremely low-carb eating plan, says Lori Shemek, PhD, a nutrition and weight loss expert with a virtual private practice. Always read labels and check if the actual ingredients are keto friendly. While ketones are a controversial topic and some people have found that they help a little, they are absolutely not necessary to have success. Your body will produce ketones on its own if you restrict carbs enough. Get the full keto pantry shopping list here with more details on what you do need. Pin it to save for later! 5. Ease Into It. If you’re starting a keto diet coming from eating a lot of carbs and sugar, cutting it all out cold turkey may be a shock. It can cause (temporary) keto flu symptoms and cravings, and while these can be manageable, it doesn’t mean that’s the only way. Apply a couple of these keto tips and tricks at a time. This gives you time to adjust. Cut out foods gradually. Eliminate all sugars first, such as soda and candy, then complex carbs like bread and pasta, and starchy veggies and fruit last.
There’s a question making the rounds on the internet that has a spectrum of answers: Is the keto diet healthy? The truth is, while the little-to-no carb, high-fat diet can dramatically help shed pounds, there haven’t been any long-term, randomized clinical studies to help determine the long-term effects on the body. Most studies to date are smaller scale, and they’re filled with both positives and negatives. Some suggest it improves blood sugar in diabetics and lessens cardiovascular risk factors, like obesity. Others report spikes in “bad” cholesterol, heart problems, and hypoglycemia. To add to the uncertainty, its effectiveness as a weight loss treatment hasn’t even been clinically proven, experts have said. What’s left is anecdotal evidence and people from all corners of the web - including physicians, nutritionists, and celebrities - raving or ranting about it. “I am open-minded when patients come to us with diets or nutritional trends, especially because I appreciate that they have taken an interest in their health,” said Neel Chokshi, MD, MBA, an associate professor of clinical medicine and medical director of the Sports Cardiology and Fitness Program at Penn Medicine. FDA authorized at home saliva self-collection testing kit for COVID-19. No waiting in line or uncomfortable swabs. While your body is in ketosis, it becomes extremely efficient at burning fat. Ketogenic diets can trigger major reductions in your blood sugar and insulin levels, which has additional health benefits. Ketogenic diets are effective for losing weight and lowering risk factors for certain diseases. While low-fat diets are traditionally recommended for those looking to shed pounds, research shows that keto is, in fact, a superior approach to weight loss. Unlike many diets, keto will not leave you feeling hungry after eating a pre-set number of calories for the day. Keto is a satisfying and filling method of dieting. In fact, you can lose weight without tracking calories-something that deters many people from adhering to other diets. There are several reasons why keto is more efficient than a low-fat diet, including increased protein intake. This makes certain vegetables easier to digest than in their raw form. Cooking also gives you the chance to add fat and flavor. A little oil, plus some pink Himalayan salt and pepper, can radically transform a tasteless raw vegetable into something more crave-worthy. In the end, it’s smart to enjoy vegetables both ways. During the summer, you may want a nice cold salad with spinach, while in the winter sauteed spinach with garlic may sound better. Check out the Best Vegetables to Eat on a Keto Diet for more information when it comes to eating your veggies. Many new keto dieters are surprised to learn that fruits and fruit juices contain as many grams of carbs and sugar as some desserts. Bananas and apples, two of the most popular fruits in the United States, contain 24g and 20g of net carbs, respectively. That’s your entire carb count for the day in just one fruit! The reason that this diet helps with neurological diseases? Eating a primarily fat-based diet actually switches our neural pathways. You’ve probably heard that our brains run off glucose for energy. Our bodies also break down carbohydrates into glucose for fuel. When you starve the brain and body of glucose by heavily limiting carbohydrates, our system has to use an alternative fuel source to function. It naturally turns to ketones, which are a byproduct of ingested and stored fats. So, when you adopt a ketogenic diet, you are literally changing your brain and body’s energy source from glucose (carbs) to ketones (fat). In neurological diseases, which often occur due to an imbalance or overactivity in neural pathways, the lack of carbohydrates shifts which neural pathways are active, and this often results in a decreased symptoms. Many people with epilepsy report a reduction or elimination of seizures when they transition to a ketogenic diet. Since that discovery, keto popularity has skyrocketed, and now you hear or read about it left and right. Rebalance and re-energize with our 4-week Keto Reset Program! Let Territory get you back on track with 4 weeks of delicious keto meals that deliver the right macros, micros and variety to help you with hunger control, mental clarity and better sleep. UP NEXT: IS KETO RIGHT FOR YOU? New to Territory? Get started with $30 on us with code AVOCADO. The clearer the color, the more hydrated you are. Eating keto-friendly foods rich in fiber can help keep digestive issues like constipation at bay. Fiber promotes a healthy gut by providing bulk and water to your stools, making them easier to pass. Adults should aim to consume at least 25-30 grams of fiber per day. This can be difficult to achieve while going keto as high-fiber foods like whole grains, fruits, and starchy vegetables are limited. While you only have 50 grams of carbohydrates a day on keto, it's important to make sure these carbs count, says Keatley. Not only are you using the bathroom more on keto, but you're going to excrete sodium and potassium through your urine, which are two electrolytes essential for staying hydrated. Depending on the type of exercise you are doing, the activity can exacerbate keto-flu symptoms like fatigue and digestive issues. That's because our bodies are used to pulling energy from carbohydrates during an intense activity like HITT workouts or running, says Keatley. While you're transitioning to ketosis, opt for low to moderate activities like walking or leisurely biking as your body adjusts to a new fuel source. This may help you avoid uncomfortable symptoms associated with the keto-flu, like digestive issues. Consider starting with a less intense moderate- to low-carb diet or making small keto-friendly swaps to your normal meals. The keto-flu is a natural response to switching your primary energy source from carbs to fats. Not everyone will experience keto-flu symptoms, but those that do usually experience them in the first few days of starting the diet and begin to feel better within a week. The keto diet is not for everyone and can cause health issues, like nutrient deficiencies, if it's not done properly. For this reason, consider consulting a registered dietitian or health professional before going keto.
At about the same time, German biochemist and Nobel laureate Otto Warburg published a study showing that cancer cells, unlike normal cells, use glucose for energy. In 1995 I worked with a teenager who had a large inoperable brain tumor that caused seizures. He was given just weeks to live but his tenacious mother pursued all possible treatments and was referred to me to start the ketogenic diet. Not only did he stop having seizures, he became more alert and active, and was able to enjoy life for another year. His neurologist determined that the diet stopped his seizures and also slowed the rapid growth of his lethal brain tumor. It was then that I realized the diet worked for more than epilepsy. In 1999 I was asked to initiate the diet in a girl who had been in intensive care for three months. She was suffering constant seizures and had been placed in a drug-induced coma several times in efforts to arrest her seizures. “Success doesn’t happen overnight, and I know that working hard will eventually get me to my goals,” says Lele. And when it comes to finding motivation, being a mother certainly helps: “My son helps me stay on track. I need to get healthier for my son to make sure I’m always here for him,” she says. “Definitely try to stick with a ‘whole foods’ concept on keto,” says Lele. “Try your best to avoid convenience food. I understand that life can be busy, and that a protein bar or processed food is really tempting at first. Lele says that it’s important to remember that, while keto is a “high fat” diet, the goal is to use your body fat as an energy source, not the fat that’s on your plate. “You don’t need to necessarily add more fats to your diet to adhere to keto. For instance, if your dinner consists of avocado, bacon, and eggs, you really don’t need to add butter to that to make it ‘more keto’,” she says.|“A well-formulated keto diet includes all the food groups and therefore provides adequate intake of micronutrients,” says Dr. Goss. She adds that the research supports the safety and effectiveness of following a keto diet even in older adults with obesity as it seems to help improve body composition and improve metabolic health.6 “We saw significant reduction in body fat while lean mass was preserved and significant improvements in insulin sensitivity and the lipid profile in response to a ketogenic diet when compared to a standard ‘balanced’ diet,” Dr. Goss explains. Anyone who takes medications for diabetes or hypertension should consult with a physician before starting on the keto diet, she adds. And it is not for everyone: Individuals who are dependent on insulin (those with type 1 diabetes) should never follow the keto diet, says Dr. Goss. Additionally, since ketosis can be harmful to a fetus, the keto diet should be avoided during pregnancy. “Also, ketones are harmful to patients who cannot correct the metabolic acidosis caused by them, ie, those with liver, kidney, or pulmonary disease,” Dr. Gonzalez-Campos adds. If you decide to follow the diet, you’ll want to have an individualized meal plan, stresses Dr. Gonzalez-Campos. “The best possible clinical outcome is for each individual to meet her nutritional needs from well-balanced meals,” he says. One concern voiced in some studies is loss of muscle tissue beyond what might be expected from any calorie-restricted weight loss diet, possibly because the body is attempting to break down protein to create glucose, but Volek says this isn't an issue when the ketogenic diet is followed correctly. Could the ketogenic diet's extreme restriction of carbohydrates contribute to micronutrient deficiencies and impact gut health? Ketogenic diets don't just eliminate sugar and refined carbohydrates; they also curtail pulses, whole grains, fruit, and starchy vegetables. All of these foods contribute vitamins, minerals, antioxidants, phytochemicals, and fiber-including prebiotic fiber that promotes a healthy gut microbiota. Numerous studies have demonstrated that the ketogenic diet alters the gut microbiota in ways that have benefit for reduction of epileptic seizures,15 but research is lacking on the impact in populations using the diet for weight loss or diabetes management. Somerville, Massachusetts-based Jessi Haggerty, RDN. She also points out that when people on a ketogenic diet are consuming large quantities of nonstarchy vegetables, the excessive amounts of insoluble fiber also can lead to nutrient malabsorption. Then you’ll want to take an occasional ketosis holiday, adding a serving of unprocessed, whole grains to allow your body to chance to work less hard. Staying in ketosis long-term-without breaks- can cause muscle aches, nausea, and fatigue. Adhering to the keto diet puts your body into a state of ketosis, which sounds similar to ketoacidosis. However, don’t confuse these terms as ketosis and ketoacidosis are two very different physiological states, Dr. Goss explains. “Ketosis is a normal physiological response that occurs when you eat a high fat, low carb diet, while ketoacidosis is more pathological,” she says. “It happens in people with diabetes whose blood glucose is very high (hyperglycemia). When in ketosis, the body begins to burn stored fats for energy, and this results in the build-up of acids, known as ketones, in your blood. A person following the keto diet aims to burn unwanted fat by actually pushing the body to rely on fat, not carbohydrates, for energy.|“What concerns me is when people say they’re following a keto diet but not all the way or something along those lines. This could lead to weight gain and increased blood lipid values if someone just starts eating a high-fat diet and borrowing concepts from ketosis.” For example, a small, preliminary study published in February 2019 issue of Nutrients suggested those who take a "cheat day" on keto could be harming their blood vessels. How It Works Think of Mediterranean keto as a combination of two popular approaches to eating: sticking to standard keto macro amounts, while emphasizing Mediterranean diet elements like fatty fish and olive oil. The main emphasis is on the quality of fats you’ll be eating, says Madeline McDonough, RDN, who is based in Boston. “Unlike the standard keto diet, which doesn’t specify which fats to prioritize, Mediterranean keto diets emphasize options like monounsaturated fatty acids, which may help lower LDL cholesterol, and omega-3s that are anti-inflammatory,” she says.
If you are among the minority of people who have a healthy metabolism and good insulin response, then you don't have to worry about your carb intake. Good metabolic health means you don't struggle with some combination of issues with blood pressure, blood sugar, cholesterol, weight, or low energy. Low-carb diets can lead to weight loss, research suggests, since they can help to manage appetite and reduce sources of added calories such as sugar and refined grains. But the primary benefit of keto is restoring metabolic health, improving insulin response, and reducing inflammation, Cucuzzella said. And while weight-loss diets work by restricting calories, Cucuzzella said that could backfire if you're doing keto for the first time, making it tougher to transition to burning fat for fuel if you aren't eating enough overall. Finally, a significant amount of the quick weight loss that people can have on short-term keto diets is water, and those pounds can return when you reintroduce carbs into your diet. Low-carb diets can also be problematic if you have a difficult relationship with food, including current or previous disordered eating habits. These include feelings of anxiety about gaining weight and a compulsive need to monitor or limit food, as well as binge eating, emotional eating, or addictive eating behaviors. Any diet that restricts what you can eat can be extremely triggering for anyone with these or other forms of disordered eating, which experts say can be risky if left untreated. It's best to seek professional support when considering a new diet. It may be tempting to make a dramatic change during a tough time. But if you can't manage your stress, you're not getting enough sleep, or you recently had an upsetting life event, it's the worst time to change your diet, Cucuzzella said. So, where does that glucose to supply our brain come from when we fast for a week? And as Dr. Peter Attia puts it, “The reason a starving person can live for 40-60 days is precisely because we can turn fat into ketones and convert ketones into substrate for the Krebs Cycle in the mitochondria of our neurons. I’m not saying here that carbohydrates are necessarily bad for us, but they’re not essential. Listen to our podcast with Dani Conway about how to create a keto plan based on your own body. Who Shouldn’t Follow a Keto Diet Plan? While carbohydrates are not essential for our bodies, there are some people for whom a keto diet plan isn’t ideal. If you fall into one of those categories, then please be extra cautious when trying keto. The ketogenic diet is a tool, but that doesn’t mean it should be used all the time and by everyone. The ketogenic diet is an ultra-low-carbohydrate, high-fat diet that has been used for decades to treat certain medical conditions. Today, adherents claim that it will help you drop pounds while boosting your energy levels and controlling your blood sugar. Its promise of fast and aggressive weight loss is a compelling one in our world of quick fixes, but the ketogenic diet can be complicated in its execution and the research of its long-term benefits and drawbacks is ongoing. “Most people’s expectations are to lose weight with this diet. However, whether this is a sustainable strategy has yet to be determined. I advocate for whole health and taking care of all aspects of it, not just dropping weight,” says Colin Zhu, DO, a family physician who specializes in lifestyle medicine. Here are five fast facts about the ketogenic diet-including its pros and cons. 1. Burning fat: On most diets, the body uses glucose as its primary energy source. For everyone else, carbs are still probably your best bet, especially if you’re running at higher intensities than you would be when running 50 miles at a 15-minute/mile pace. “When you’re running at a lower intensity, you need to burn more fat as fuel,” Kasparek explains. Which brings us back to the main question: Does the keto diet work and should you try it? The bottom line is: If done right, runners who need to be able to tap into fat stores over long distances may benefit. But that’s not to say those benefits can’t be reaped by following a low-carb, high-fat diet that doesn’t put your body into ketosis instead. Runners who enjoy shorter distances at faster paces or who incorporate high-intensity workouts into their training are still better off eating a healthy, balanced diet that includes carbs. For weight-loss goals, Kasparek says, it’s possible to lose weight by tweaking a regular diet, say, by adding more healthy fat or cutting out processed foods. But there’s more than one way to lose weight, and one banana isn’t going to set you back-we promise. High-carb sauces: Barbecue sauce, sugary salad dressings and dipping sauces. Certain alcoholic beverages: Beer and sugary mixed drinks. Though carbs should be restricted, low-glycemic fruits such as berries can be enjoyed in limited amounts as long as you’re maintaining a keto-friendly macronutrient range. Be sure to choose healthy food sources and steer clear of processed foods and unhealthy fats. Unhealthy fats: Margarine, shortening and vegetable oils such as canola and corn oil. Processed foods: Fast food, packaged foods and processed meats such as hot dogs and lunch meats. Diet foods: Foods that contain artificial colors, preservatives and sweeteners such as sugar alcohols and aspartame. Sugar can be found in a wide variety of beverages including juice, soda, iced tea and coffee drinks. While on a ketogenic diet, high-carb drinks must be avoided just like high-carb foods. Thankfully, there are many tasty, sugar-free options for those on the keto diet. Water: Water is the best choice for hydration and should be consumed throughout the day. Sparkling water: Sparkling water can make an excellent soda replacement. Unsweetened coffee: Try heavy cream to add flavor to your cup of joe. Unsweetened green tea: Green tea is delicious and provides many health benefits. If you want to add some extra flavor to your water, try experimenting with different keto-friendly flavor combinations. For example, tossing some fresh mint and lemon peel into your water bottle can make hydration a breeze. Though alcohol should be restricted, enjoying a low-carb drink like vodka or tequila mixed with soda water is perfectly fine on occasion. A healthy ketogenic diet should revolve around high-fat, low-carb food choices and restrict highly processed items and unhealthy fats. Keto-friendly beverage options must be sugar-free. Consider water, sparkling water or unsweetened green tea and coffee. Not long after he got the news, he happened to receive an e-mail about a book title The New Atkins for a New You, and realized he recognized many of the authors’ names on the cover, which belonged to respected exercise experts Stephen Phinney, M.D., Ph.D; Jeff Volek, Ph.D., R.D.; and Eric Westman, M.D. They argued that the late Dr. Robert Atkins, who famously promoted a low-carb, high-fat diet in the 1980s-and was routinely lampooned for promoting eggs, bacon, and cheese as healthy foods that worked great for weight loss-had been right all along. The professors backed up their position with more than 50 new dietary studies and an action plan for getting lean and maintaining weight loss. Noakes says he learned more about nutrition that year than in his previous 42 years as a doctor. “I was 222 pounds when I picked up that book,” he tells me. His new way of eating, he says, also cured his migraines and acid reflux. Additionally, some patients may feel a little tired in the beginning, while some may have bad breath, nausea, vomiting, constipation, and sleep problems. Is a ketogenic diet healthy? We have solid evidence showing that a ketogenic diet reduces seizures in children, sometimes as effectively as medication. Because of these neuroprotective effects, questions have been raised about the possible benefits for other brain disorders such as Parkinson’s, Alzheimer’s, multiple sclerosis, sleep disorders, autism, and even brain cancer. However, there are no human studies to support recommending ketosis to treat these conditions. Weight loss is the primary reason my patients use the ketogenic diet. Previous research shows good evidence of a faster weight loss when patients go on a ketogenic or very low carbohydrate diet compared to participants on a more traditional low-fat diet, or even a Mediterranean diet. However, that difference in weight loss seems to disappear over time. A ketogenic diet also has been shown to improve blood sugar control for patients with type 2 diabetes, at least in the short term.|For someone eating 2000 calories per day, that translates to around 167g fat, 75-100g protein, and 25-50g carbohydrates. This is key: the total calories you consume are not NEARLY as important as the overall ratio of protein/fat/carbohydrate that you take in. Consuming foods with this macronutrient ratio causes our bodies to burn fat for fuel instead of carbohydrates, meaning it’s a simple (not easy, but simple) way to burn body fat more efficiently. Because of this, the ketogenic diet has been getting a ton of buzz recently for its weight loss benefits. Many people who adopt a ketogenic lifestyle tout easy weight loss from following the protocol, without adding in extra exercise or worrying about total calories. It’s true, you can experience rapid, significant weight loss if you follow this diet correctly, to do this safely, there are other nutritional considerations - more on that soon. WHERE DID KETO COME FROM? The ketogenic diet is the gold standard diet for epilepsy, and research demonstrates that these benefits could actually extend to other neurodegenerative diseases as well. This process is known as ketosis: It’s like when a hybrid car runs out of gas and reverts to pure electricity. “Your liver produces ketones all the time, but the rate depends on carbohydrate and protein intake,” says Jeff Volek, Ph.D., R.D., a professor of human sciences at Ohio State University. When the majority of your diet is made up of of carbs and protein, ketogenesis slows. Replacing carbs and protein with fat will put your body into ketosis, thus ramping up ketone production. Essentially, you're burning fat instead of carbs for energy. This process takes about three days to induce. Can’t you take ketone supplements? No. While it is possible to elevate ketones by taking them, “without the low-carb stimulus, there is no net increase in ketone production, no decrease in insulin, and no net increase in fat oxidation,” says Volek. Don’t trust trainers or “body hackers” who say you can induce ketosis quickly without changing your diet. What can you eat on the keto diet?|Can it promote weight loss? There are several proposed weight loss mechanisms associated with the ketogenic diet, though long-term studies are lacking. Thus, the keto diet may be an effective strategy to regulate your hunger levels, though its long-term safety must be taken into consideration. Another potential weight loss mechanism of the keto diet is the loss of water weight that accompanies the significant reduction in carb intake. Thus, when you reduce your carb intake, such as during the initiation phase of the keto diet, stored carbs are released along with additional fluid, resulting in weight loss of varying amounts. To determine whether the keto diet can aid weight loss, it’s important to review how weight loss is traditionally achieved. To lose weight, you must eat fewer calories than you burn, which is also referred to as a calorie deficit. One study in 17 men with obesity or excess weight found that the keto diet was associated with a small increase in the number of calories burned. These results suggest that the ketogenic diet is not necessarily superior to a traditional diet for weight loss when calorie intake is matched. The keto diet’s weight loss effects are therefore much more likely to be a result of reduced calorie intake due to changes in satiety signals associated with high fat, very low carb diets. The keto diet has been associated with weight loss, though the exact mechanisms remain unclear. Studies suggest that weight loss related to the keto diet is likely due to a calorie deficit, reduction in hunger levels, and water weight loss. How wide is the divide between the hype and the research? Originally developed to treat severe epilepsy in infants and children under medical supervision, today the ketogenic diet is moving to the mainstream as a low-carbohydrate tool for weight loss and as a means to reduce cardiometabolic risk factors-but not without controversy. Today's Dietitian looks at what the ketogenic diet is, what's known about its risks and benefits, and whether patients who say they're "doing keto" are actually following a ketogenic diet. The ketogenic diet isn't just any low-carbohydrate diet, and it's not necessarily similar to the Atkins or Paleo diets. The Atkins diet restricts carbohydrates while emphasizing protein and limiting fat, and while the Paleo diet restricts some carbohydrate-rich foods-primarily grains and pulses-it isn't necessarily low carb. The ketogenic diet is very low in carbohydrates and very high in fat, putting the body into ketosis-the burning of fat instead of glucose for fuel. Cardiologists are still debating the long-term effect of low-carb diets on heart health. Dietitians do not recommend the diet if you have an eating disorder or a history of eating disorders. Restricting your diet can make the problem worse and lead to bingeing or other excessive behaviors. It also does not allow you to follow mindful eating or Intuitive Eating principles. Those that have medical conditions affected by fat intake, like pancreatitis, should avoid following the keto diet. If you are considering the keto diet, we recommend that you talk to your physician and care team. Welldoc’s Registered Dietitians believe that eating a well-balanced diet and setting SMART goals can help you manage your blood sugars and stabilize your weight. We also know there is not one best diet that works for everyone with type 2 diabetes. Can I stick with this eating plan for the long term? Does this eating plan include a wide variety of foods? Will this eating plan help me develop a healthier relationship with food? What does my physician and care team recommend? Please inform your physician of any changes you make to your diet or lifestyle and discuss these changes with them. If you have questions or concerns about any medical conditions you may have, please contact your physician.
This easy keto meal plan for beginners is very simple. Here are some rules for you to create fabulous low carb menus, without cooking all the time. Cook dinner each night. Eat leftovers for lunch. Eat Keto friendly snacks. Don't be afraid to eat keto desserts for breakfast! Of course, you can always do eggs and bacon, nuts, yogurt etc. for breakfast. But there's nothing wrong with eating an almond scone for dessert as well as breakfast. Do not get discouraged. Remember you are breaking a life-long habit of carbohydrate addiction, and it could get uncomfortable as your body reacts both physically and mentally. You might feel sluggish. Keep in mind that means it's working - your body is transferring from using one form of fuel to another, and you will begin to see results soon. Moral support. we have a great FB family support page. You'll soon feel energetic.|If it is in terms of missing out on your previous carbohydrate-rich foods, then I think it’s a small price to pay for the low-carbohydrate lifestyle ahead. Persons who observe a keto diet habitually have their bodies in a metabolic process of ketosis where the body tends to utilize fat for energy purposes instead of glucose which normally uses - ketosis. This metabolic state sees the body act upon facts and turns them into ketone bodies. This ketosis process is a lot different from diabetic ketoacidosis, where the body lacks insulin and has an extremely high level of ketone at the same time. Ketoacidosis is common among persons suffering from chronic cases of diabetes, possibly life-threatening. How fast you lose weight usually compounds many factors, including your body type, exercise routine, and diet, most importantly. If someone you know lost weight effectively to get the desired results on a keto diet, it doesn’t exactly translate into saying that that exact keto diet ratio will be the most effective option for you. The keto diet is being studied for mitigating symptoms for patients with progressive neurological disorders like Parkinson’s disease, but scientific research has not confirmed benefits for these populations. Because of the stringent food restrictions, many find the keto diet hard to stick to. “The ketogenic diet can be effective for weight loss when used in a short time period followed by the adoption of healthier eating habits,” says Cardiologist Kameswari Maganti, MD,Northwestern Medicine Bluhm Cardiovascular Institute. Ketosis is difficult to achieve because it’s like a light switch: either on or off. Individuals who consistently track food intake are more likely to remain in ketosis. But the only way to tell if your body is in ketosis is a blood test. “Because the keto diet is so restricted, you’re not receiving the nutrients - vitamins, minerals, fibers - that you get from fresh fruits, legumes, vegetables and whole grains,” says Dr. Ring. Due to these deficiencies, people also report feeling foggy and tired.
This post and photos may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases. If you purchase something through any link, I may receive a small commission at no extra charge to you. All opinions are my own. Whether you’re just starting the ketogenic diet or you’ve been on it, but stalled, this post will clear up any confusion on how much fat your body really needs for weight loss on a keto diet. HOW MUCH FAT FOR WEIGHT LOSS ON KETO? Fat is a controversial topic in the keto world space. If you’ve been on a ketogenic diet and have had success, you may be in the camp of high fat, close to 75% in your day, as being the best way to get your body into ketosis and lose weight. Or you may be in the camp that the classic high fat ketogenic macros didn’t help you to lose weight at all. Wherever you fall, the ketogenic diet is not a one-size-fits-all approach.|In the absence of glucose, which is normally used by cells as a quick source of energy, the body starts to burn fat and produces ketone bodies instead (it’s why the keto diet is often referred to as the ketone diet). Once ketone levels in the blood rise to a certain point, you enter into a state of ketosis - which usually results in quick and consistent weight loss until you reach a healthy, stable body weight. See this keto diet review, a before and after trying keto for 30 days. To sum up a complex process, you reach this fat-burning state when the the liver breaks down fat into fatty acids and glycerol, through a process called beta-oxidation. There are three primary types of ketone bodies that are water-soluble molecules produced in the liver: acetoacetate, beta-hydroxybutyrate and acetone. The body then further breaks down these fatty acids into an energy-rich substance called ketones that circulate through the bloodstream. Fatty acid molecules are broken down through the process called ketogenesis, and a specific ketone body called acetoacetate is formed and which supplies energy. The ketogenic diet is an ultra-low-carbohydrate, high-fat diet that has been used for decades to treat certain medical conditions. Today, adherents claim that it will help you drop pounds while boosting your energy levels and controlling your blood sugar. Its promise of fast and aggressive weight loss is a compelling one in our world of quick fixes, but the ketogenic diet can be complicated in its execution and the research of its long-term benefits and drawbacks is ongoing. “Most people’s expectations are to lose weight with this diet. However, whether this is a sustainable strategy has yet to be determined. I advocate for whole health and taking care of all aspects of it, not just dropping weight,” says Colin Zhu, DO, a family physician who specializes in lifestyle medicine. Here are five fast facts about the ketogenic diet-including its pros and cons. 1. Burning fat: On most diets, the body uses glucose as its primary energy source. If you haven’t had 3 balanced meals with protein, fat, and a vegetable every day, you aren’t going to feel good. You cannot live on keto brownies and think that you will benefit from the mental clarity and increased energy from the ketogenic diet. Third, if you have given keto a solid chance, with 2-3 balanced meals a day, no artificial sweeteners or franken foods, and you’ve supplemented with electrolytes as described below, AND you’re drinking at least 3 quarts of water a day for a total of 2-3 weeks, it may be that keto just doesn’t work with your body - either at all, or at this time in your health. You may have an underlying health issue, or your body just may prefer less rich food. I know it happens! People on the ketogenic diet need to supplement with potassium and make sure you’re consuming salt. Magnesium is another electrolyte that most people supplement, and some people get from taking epsom salt baths.
Click here to join our free support group! JOIN THE EASY KETO CHALLENGE! One of the most common questions I get is, “what to eat on a keto diet?” or “what to eat on a low carb diet?” Fortunately, with the right resources, this is one of the easiest questions to answer. In fact, the keto diet (and low carb diet) is probably the most flexible, sustainable eating lifestyle out there. You don’t have to feel deprived, bored or restricted. And, it doesn’t need to be complicated. Let’s start with foods to get rid of… Avoiding carbohydrates is probably the biggest adjustments for people starting a keto diet or low carb diet. Many of us were used to consuming carbs at every meal. Get these out of your house if you can! If you have family members that are not on board, at least store these in a separate area from other foods to reduce temptation.|For still other people it will be tough to sustain because carbs aren’t only delicious, they’re omnipresent. Avoiding them day to day means fastidious meal prep and planning, and planning for social events that include food or eating. Many people believe the ketogenic diet is great for weight loss. But it's actually a bit more complicated than that. Before we dive further into weight loss, a note: Weight loss isn't for everybody, and neither is following a specific, restrictive eating plan. If your goal is to lose weight, that's fine, but your health matters more than a number on a scale (and if you have a history of disordered eating, you should discuss any plans to change your diet with a doctor first). In addition, successful long-term weight loss is the product of many factors: Your physical activity, how much sleep you get, stress management, and other factors like medical issues and hormones all play an important role. What you eat is just one part of the weight loss puzzle. Essentially, the keto diet for beginners works by “tricking” the body into acting as if its fasting (while reaping intermittent fasting benefits), through a strict elimination of glucose that is found in carbohydrate foods. Today the standard keto diet goes by several different names, including the “low-carbohydrate” or “very-low-carbohydrate ketogenic diet”(LCKD or VLCKD for short). At the core of the classic keto diet is severely restricting intake of all or most foods with sugar and starch (carbohydrates). These foods are broken down into sugar (insulin and glucose) in our blood once we eat them, and if these levels become too high, extra calories are much more easily stored as body fat and results in unwanted weight gain. However, when glucose levels are cut off due to low-carb intake, the body starts to burn fat instead and produces ketones that can be measured in the blood (using urine strips, for example). Keto diets, like most low carb diets, work through the elimination of glucose. A ketogenic (“keto”) diet is an extremely carbohydrate-restrictive, high-fat diet. A ketogenic diet restricts carbohydrate intake to less than 25 to 50 grams per day in an attempt to enhance tissues to use fat or ketones (acids produced by the liver) as fuel during caloric restriction. Ketogenic diets typically recommend that only 5% of calories come from carbohydrates, along with 75% from fat and 20% from protein. Ketogenic diets were first used in the 1920s to treat diabetes prior to the discovery of insulin. These diets were also used to treat difficult-to-control epilepsy in children. Recently, ketogenic diets have been promoted as weight-loss diets and to control blood glucose in patients with prediabetes and type 2 diabetes. Keto diets may lead to weight loss in the short term, but that weight loss is similar to what is achieved with other dietary approaches over the long term. Keto diets may improve blood glucose in the short term in patients with type 2 diabetes, but there is inconclusive scientific evidence that these diets are superior to other weight-loss regimens in the long term.