There are numerous benefits that come with being on keto: from weight loss and increased energy levels to therapeutic medical applications. Most anyone can safely benefit from eating a low-carb, high-fat diet. Below, you’ll find a short list of the benefits you can receive from a ketogenic diet. For a more comprehensive list, you can also read our in-depth article here >


I’m a Registered Dietitian, and I greatly appreciate your overview. I will admit, I felt the exact same as yourself, but I decided to research it further, and then go on it to test it, and I have to admit, it has changed my view of it completely. I believe as dietitians, instead of telling our clients it’s a fad, educate them on how to do it successfully as a lifestyle and not as a fad. I believe that is the key. I highly recommend “What the Fat” book written by both a Registered Dietitian and professor. Great job going into the science and research. https://whatthefatbook.com/product/what-the-fat/

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Both states are normal to the human body, although many people live without experiencing a state of ketosis. In traditional hunter-gatherer lifestyles, people regularly cycled in and out of ketosis. Most of these cultures lacked consistent access to carbohydrates. In seasons where carbs were unavailable, or when food was very scarce, blood sugar levels would plummet.

Get Plenty of Sodium. This might sound counter to what you’ve been told before, but your body really needs sodium. It’s one of the ways that your cells transport nutrients in and out of cells. And when you stop eating processed grains and sugar, you often get much less sodium. So when you go keto, just be sure that you’re eating salt or sodium-rich foods. If not, you will often experience fatigue.

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Sleep enough – for most people at least seven hours per night on average – and keep stress under control. Sleep deprivation and stress hormones raise blood sugar levels, slowing ketosis and weight loss a bit. Plus they might make it harder to stick to a keto diet, and resist temptations. So while handling sleep and stress will not get you into ketosis on it’s own, it’s still worth thinking about.
Meanwhile, Noakes continues preaching that the right kinds of fats—the ones our bodies evolved to process, like animal fat and butter, olive and coconut oil (but not vegetable oils like corn oil and soybean oil)—are extremely healthy. Noakes titled his 2012 autobiography Challenging Beliefs, and, at age 67, he’s publicly waging a war against carbs and sugar from his Twitter account, @ProfTimNoakes, where he chimes in every few hours and has churned out more than 27,000 tweets since 2012.

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Thanks for the great and helpful information about the Ketogenic diet .Since the last 4 years I’m on a keto diet I’m very happy,feeling a lot more healthy and I have lost a lot of weight.During that time I did quite few mistakes mainly due to misinformation so I highly recommend everyone who is really interested in keto diet to read this first https://tinyurl.com/y7xp7c6u

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I am with you! I have been a WW member and been years without going outside of my suggested guidelines. I would lose weight, plateau, go on one of their plateau breaking diets for two weeks then have to go off and slowly gained weight again. I was teaching my body to live on less. I have been down as low as 800 kcal a day and not losing. Eat more fiber so you feel full was what I was told. Try eating 800 kcal, high fiber and see how balanced your diet is. I am eating between 1800 – 2000 kcal now and dropping 10 – 15 lbs a month on Keto. Long term diuretic user, I no longer have water retention. I am salting and using fat and I am off my blood pressure medicine. I am not hungry so I am wondering why is this not sustainable? I eat mostly carbs from vegetables, I eat a variety of meats, I eat a variety of vegetables, I feel great and my blood tests are better than they have been in 2 decades. I am starting to feel that the carb revolution is because we are told by the government what is good to eat. We all know that vegetables are good to eat but the government subsidizes corn, wheat and soy, not spinach, kale and cucumbers. Do your research, follow your hearts, do what works for you.

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Thanks for the great article! As a fellow dietitian I think its challenging to stay on top of the fads and weight loss trends. The way I see it is that there are two types of ketogenic diets – lifestyle (for weight loss) and therapeutic for some of the medical conditions you mentioned above. Bottom line, the ketogenic diet is not a “natural” diet and there are serious associated side effects. I believe that people following the diet need to be supported by a team of medical professionals to ensure adequate monitoring.

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With more than 200 pages of colorful, informative recipes, The Essential Keto Cookbook is, as per the title, a tome of vital food options for those following the keto diet. The authors, Louise and Jeremy Hendon, are a power couple in the field of high fat, low carb diets. Alongside each recipe, the authors have provided the full nutritional information including the carbohydrate counts, to help you keep track of what you are consuming. As part of this purchase, you will also get a fully developed meal plan to assist you in sustaining this energizing and filling diet.

Traditionally, in the sports nutrition field, we talk about the importance of timing carbohydrate and fluid intake on improving sports performance. For some time now, research has been looking at the role of very low carbohydrate diets on sports performance. Trailblazers in keto and sports performance research like Dr. Stephen Phinney have been conducting studies in this area since the 80s. In one of his studies, the glycogen stores of cyclists on a keto diet were not completely depleted and lipid oxidation was increased. Researchers concluded that the body was able to adapt to the lack of carbohydrates and preserve what was needed to use the fat as fuel.  However, based on the VO2 max breath test, since the body was attempting to preserve the carbohydrate during the exercise, it appears that the intensity of the exercise was limited. In a more recent study, off-road cyclists following a keto diet experienced small improvements, but still not significant enough to make strong conclusions.
Abbey, I appreciate all the work you put into this but there are a few things you missed. Not all oils are keto friendly. Vegetable oils are a huge no-no which was not mentioned. Regular mayo usually contains soybean oil which should be avoided. You also missed that foods with preservatives are a no-no which excludes some cheeses (you said enjoy all the cheese you like). Processed sliced cheese or pre-shredded cheese in a bag at the grocery store contains preservatives. Ever notice how shredded cheese in a bag never sticks to itself but when you shred your own cheese it sticks? Preservatives. Most nuts are okay but peanuts are a legume and should be consumed in very small amounts or avoided altogether. Don’t go crazy either, nuts do have carbs. I don’t eat more than a half cup a day of salted almonds. That said, you could have mentioned that getting salted nuts is ideal as you do excrete more salt and other minerals in your urine (eating keto is diuretic so attention must be paid to salt, potassium, magnesium, etc. as you did mention) so finding simple ways to add salt and other minerals is helpful. I also take a multi-vitamin daily. You mentioned you cannot do high intensity workouts. You are not supposed to do high intensity workouts as elevating your heart rate too high actually stops the fat burning process in your body. Your heart rate should be 180 beats minus your age +/- 5 beats depending on fitness level. A 40 year old obese person shouldn’t go over 135 beats/min during a workout as that is the optimal fat burning window. Higher than that and your body reverts to storing fat reserves thinking it will run out if it keeps this pace. Which bring me to metabolism. Its been long believed a high metabolism is good. A high metabolism leads to more hunger (because you’re burning glucose faster), ingesting more food, and typically gaining more weight. Slowing your metabolism down AND teaching your body to consume slow burning ketones instead of quick burning glucose puts less stress on your liver mainly and on your body in general. There’s a lot more but this is getting long so I’ll finish with this. You said this diet focuses on quantity of food and not quality. This is confusing to me….wouldn’t organic and grass-fed meats, be of better quality than non-organic and grain fed meat? (they feed animals grains to fatten them up….shouldn’t that be a huge warning sign for us?). Is food without preservatives not better quality than food with preservatives? Aren’t beverages with no sugar or artificial sweeteners of better quality than sugar/artificial sweetener-filled beverages? I’ve never seen any keto advocate advise ignoring quality foods, in fact its quite the opposite.

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People claiming huge benefits of these supplements – despite the lack of solid scientific support – may sometimes have a financial reason to believe in the supplements. Some of these products are sold under a multi-level marketing arrangement, where sales people are paid based on commission. For example, the company Prüvit sells drinkable ketones, called KETO//OS with a multi-level marketing structure.

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I did the Keto diet for 26 days. I’m not really what anyone would consider overweight but did lose 11 pounds. My heart rate is out of control. My resting heart rate is 98 and my blood pressure is above high. I’m actually a little scared. I loved the diet and being on it, but as someone who always had optimal blood pressure and pulse before and great endurance for intense workouts, I’d say the diet has destroyed that. I wish I’d have known before. I didn’t take magnesium, potassium or salt drops like so many told me I should have been doing. (Didn’t realize this before) In my opinion, if you need to do that to stay alive on a diet it isn’t safe! I have lost weight in much healthier ways before without needing to supplement to stay alive. I am now working on getting my heart rate down at the age of 33 and 145 pounds. Such a ridiculous outcome. Diet fail! 

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“These diets are so unsustainable and in the long term, just not worth it!” Most definitely in your opinion. I did a LOT of research on Keto before I started it in 2009. I lost 130lbs. It’s not a diet, it’s changing the way you think about food and fuel for your body. And once you do that you understand food freedom. I eat mostly Keto but if I want a beer and a piece of Watermelon I will let myself have one. True it’s not for everyone, not everyone has the willpower to control what they put in their mouth. We tend to reward ourselves with food instead of using it what its for, nourishment and fuel. It’s why our country is dying of obesity. Awesome that a size 10 women can put what she wants in her mouth everyday, exercise, and it not affect her weight but guess what, you are becoming the minority.
Fish are great for keto diets because they offer heart-healthy omega-3 fatty acids, and you can dress them up in so many ways. While fish and seafood can be a great choice when dining out, make sure you order with no breading and try to find out exactly what they use to cook and season them. Did you know that black pepper has carbohydrates? It does indeed, which is why it is so important to make sure you know what’s being added to it.

Get Plenty of Sodium. This might sound counter to what you’ve been told before, but your body really needs sodium. It’s one of the ways that your cells transport nutrients in and out of cells. And when you stop eating processed grains and sugar, you often get much less sodium. So when you go keto, just be sure that you’re eating salt or sodium-rich foods. If not, you will often experience fatigue.

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Such an in-depth post (and I applaud you for remaining so professional throughout some of these comments)! I’ve heard a lot about the keto diet and am glad that it does seem to work for some, but am definitely more on board with a more balanced diet. Kudos to the people it does work for though (I’ve had several patients with epilepsy who follow a ketogenic diet and it does seem to be helpful for them)!

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Once you know what you will be eating on keto, you will probably be wondering how much of you should eat for each meal. Since meal size depends on the individual and his/her goals, we recommend using a calorie tracking app and our carb tracking guide to help you figure out the macronutrient content of your meals. As you track your macros, you will be able to figure out what adjusts you need to make to your diet to reach your goals.

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I love prepping meat days in advance, so I don’t have to cook meat for every meal. Organic processed meats are quick and easy, but they also cost more, so it’s up to you. Also, be sure to save the chicken broth for cooking other foods and making soups. Feel free to cook your poultry in bacon grease to add additional fat. Avoid sauces unless you are using low carb poultry sauces or dips. I try to use low carb herbs and seasonings on all of my poultry; it may seem like a lot of work to figure these things out, but trust me, you’ll get the hang of it in no time.

So for all the dangers you listed on this, my dietician prescribes this diet to everyone who comes into his office looking for weightloss, he has a stack of packets with standardized information regarding the specific diet. For what it’s worth, most of the side effects you listed, I did go through, although the sugar withdrawal was the worst, but after a couple weeks, that passed too. Now I’m on the same 1200 calorie, <20g carb, 0 sugar diet, and it feels VERY sustainable. The only thing I really miss is pizza, and even then, there are keto friendly chicken based crusts that really hit the spot. I guess one thing that sticks out to me is my doctor told me that the human body doesn't need any sugar to survive, and while he makes the distinction between simple and complex carbs, still cuts them out in a normal keto diet style (no potatoes, corn, most beans in larger quantities, etc). Should I be concerned about my doctor? He came as a referral and has a large track record of long term success with his patients.


The keto diet is amazing! I’ve been on it for 15 months now. I maintain 20 grams or less carbs a day. I lost 60 pounds in less than 3 months and have maintained that loss. My triglycerides and cholesterol numbers are far better than average. My blood pressure normalized within a month and I no longer take mesds. I have a heart condition called PVC and am off all meds for that as the symptoms are no longer a bother. Those symptoms, as well as blood glucose numbers, decreased considerably within 2 weeks. It is the most beneficial “diet” I’ve ever used. It is a lifestyle that I 100% support. It is sustainable long term. I go to the gym daily. I am now 50 and have better energy than ever and feel far better than I did in my 30s and 40s.
Hi, I am trying to do as much research as I can for my daughter and myself. My 19 year old daughter has been diabetic for 13 years and I am quite nervous about altering our diets without the approval of her medical team but they are not always on board with alternative lifestyles. I would love to follow your journey so she can see all the benefits you have gotten since you started. 

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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.
Thank you for the information on the pros and cons of the keto diet. I have heard so much about it, a lot of people in my age group (55-65) are on it and have had success. I have NOT had the success that everyone else has had, I lose 7 gain back 2. Lose 3, gain back 4. I work out almost every day during my lunch break, which gives me only about 20 minutes of fast hard sweat. I have to wonder if this diet is NOT working for me because of this. I follow the dietary guidelines very strictly and I have experienced the effects of it, such as constipation, stinky pee and stinky breath. People tell me that by week 5 you should start to see a dramatic drop in weight. Not so for me, but then, I had the same issue when I was on weight watchers. The weight loss is so slow that I tend to just give up. I will stay with it for another month, but if I continue to see no real drop in weight, I am just going to assume that it is the wrong diet plan for me.

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The low-carbohydrate diet options available in this book are also sugar-free, gluten-free, legume-free and in some cases dairy-free. While these may seem like restrictions on your diet, this book has so many delicious recipes to offer that you’ll not even miss carbohydrates or sugars, so often a major part of contemporary diets. This book also contains an in-depth list of foods which are suitable for eating when following keto. This ketogenic diet food list will help you stick to the diet while enjoying delicious food.
Once the medical community acknowledged the keto diet’s effectiveness in reducing seizure episodes, they decided to look further and study its impact on neurological diseases in general. Neurological diseases share a common problem – a deficiency in energy production. Ketones provide that energy for normal brain cell metabolism, and may even be a more efficient   when the body is in starvation mode. When patients were put on the keto diet, the number of mitochondria (energy powerhouse) in brain cells increased. Ketones may also act as an antioxidant by inhibiting the formation of reactive oxidant species, which is why they may have promising effects in the treatment of certain cancers in conjunction with chemotherapy.

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I had high blood pressure, was going into atrial flutter, obese, tired, moody and hurting and miserable, I kept having allergic reactions to the medication for my blood pressure which enhanced the atrial flutter, my doctor and cardiologist suggested that I go off all medication and approach this by getting rid of the problem, being obese. I started with a lower fat version of a Keto diet (I needed the fat on my body to be used before the fat in my diet). I eat small amounts of fruit and about 2 lbs a day of veggies and I manage to stay under 30 g of carbs a day, which works for me. I lost 40 lbs in 10 weeks. Here is the clincher, every 2 weeks by blood work was done by my doctors and everything is improving drastically, also I was getting the bod pod completed every 2 months to check my body weight / fat percentage, and I am not losing muscle, I am losing fat. I noticed that it was mentioned that it is too hard to sustain this way of eating, but there is really only one choice for me..putting that crap in my mouth is just putting poison in my system and I don’t want that ever again. I eat better now that I have ever ate as I am eating real food. I know dietitians were taught and trained to help people lose weight, but like any industry things evolve and change and things progress, and one must be open minded that there are different approaches that work for different people, and that as a professional dietician, I would expect them to see that there is more than one option to help people. Some people do just fine on 100 g carbs a day and I don’t, as I was addicted to carbs / sugar and now I am free of those drugs and I am healthy and happy. Everyone keep an open mind and try adaptations that work for your body and situation.

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Shopping for the keto diet will take some time to get used to. You’ll be navigating parts of the grocery store that you may not be familiar with. You’ll also be purchasing items you’ve never cooked before. However, with planning and dedication, low carb shopping will become easier. Just remember to make a list before you visit the store and stay toward the outer aisles of the grocery store. In no time, you’ll be an experienced low carb shopper.
Adequate protein intake and developing ketosis are both critical for maximising fat loss and sparing muscle mass during the ketogenic diet. However, it will take up to 3 weeks before your body gets keto-adapted (in some cases even more). During the initial phase of the ketogenic diet, nitrogen losses may occur if your daily net carbs intake is very low. When your carbohydrate intake goes down, your body converts body protein into glucose. Since about 16% of protein is nitrogen, you may lose muscle mass which will cause a decrease in your metabolic rate. This could have a negative impact on fat loss. For example, if your carbs intake is close to zero, you you may have to eat more protein (aka protein sparing modified fast). Keep in mind this applies to zero carbohydrate intake which means it does not affect most people following the ketogenic diet.

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What really killed it for me was the unrealistic restrictions of the entire day carbs count you should end up with – there is no f***ing way I can get by one full day with 20 grams of carbs and under. Just one of my meals ended up with at least 15 grams of carbs (half small onion-small red bell pepper-half cup chopped mushrooms-cup green beans), sometimes 20-25, times 4-5 meals (amature bodybuilder) and I end up with ~100 grams of carbs per day, at least.

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Truly Dr. Colbert is also a reputable source for more thorough science and modification of previous Keto extremes. The statements about Keto diets with dairy everyday are not true…I am a 66 year old professional (University trained) and have found medical people often very unknowledgable or partially knowledgeable which may be worse. I ask you Abbey to dig deeper…meet Dr. Colbert-not a quack and more in depth than your overview. Personally I am finding switch to more green’s and low glycemic vegetables and fruits with healthy fats, occasional dairy and healthy protein; a way of life that is helping our whole family. Please watch The Magic Pill…the help for family’s caught in old thinking from poor science (ie. Alex Keys) and with autism etc. and so much modern disease is in itself, motivation to search out more truth.

The volumes of knowledge on display here make this book a mainstay in the field of ketogenic dieting.  This also makes it a really great option for anyone who’s interested in this high-fat diet. While this book is a superb document for anyone looking to enjoy the keto diet, don’t be scared as there is nothing too crazy in here! One of the best keto cookbooks for anyone just starting out and looking to learn the ropes.

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