Hello, I’m Abbey! I'm a Registered Dietitian (RD), an avid food and recipe writer, a TV nutrition expert and spokesperson, a YouTube host and the founder of Abbey’s Kitchen Inc. Abbey's Kitchen is a multi- faceted food and nutrition media brand developed with the goal of celebrating the pleasurable eating experience. For more information about me, check out my bio here.
The ketogenic or “keto” diet is a low-carbohydrate, fat-rich eating plan that has been used for centuries to treat specific medical conditions. In the 19th century, the ketogenic diet was commonly used to help control diabetes. In 1920 it was introduced as an effective treatment for epilepsy in children in whom medication was ineffective. The ketogenic diet has also been tested and used in closely monitored settings for cancer, diabetes, polycystic ovary syndrome, and Alzheimer’s disease.

There have been many attempts at studying the link between type 2 diabetes and the keto diet. In one study, a strict low-carbohydrate diet was administered in obese patients with type 2 diabetes. After 14 days of being on the diet, the glucose levels of participants normalized, their hemoglobin A1C decreased from 7.3% to 6.8% and insulin sensitivity improved by 75%. Some of this study’s limitations include the short duration, the small sample size and the weak control group. In another study, 84 obese patients with type 2 diabetes were randomized to either a low-carbohydrate keto diet or a low-glycemic reduced calorie diet. At the end of the study, both groups experienced improvements in glycemic control however the low carb keto group had greater improvements in hemoglobin A1c and higher HDL levels compared to the low-glycemic group. A more recent 2017 study in the journal of Nutrition and Diabetes found that a low carbohydrate ketogenic diet for 12 months led to greater reductions in HbA1c and body weight. These results suggest that low carbohydrate interventions may be effective at improving glucose control.
A keto diet has shown to improve triglyceride levels and cholesterol levels most associated with arterial buildup. More specifically low-carb, high-fat diets show a dramatic increase in HDL and decrease in LDL particle concentration compared to low-fat diets.3A study in the long-term effects of a ketogenic diet shows a significant reduction in cholesterol levels, body weight, and blood glucose. Read more on keto and cholesterol >

Do you gain weight after stopping Keto


Our bodies are incredibly adaptive to what you put into it – when you overload it with fats and take away carbohydrates, it will begin to burn ketones as the primary energy source. Optimal ketone levels offer many health, weight loss, physical and mental performance benefits.1There are scientifically-backed studies that show the advantage of a low-carb, ketogenic diet over a low-fat diet. One meta-analysis of low-carbohydrate diets showed a large advantage in weight loss. The New England Journal of Medicine study resulted in almost double the weight loss in a long-term study on ketone inducing diets.

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A. The paleo diet mimics how our hunter-and-gatherer ancestors ate during the Paleolithic era. It avoids grains but allows high-carb foods, such as sweet potatoes and carrots, that the keto diet eschews. Another differentiator is that traditional Paleo diets don’t allow dairy whereas full-fat milk products are a part of a keto diet. However, some Paleo diets allow ghee and other dairy products.

However, this diet is gaining considerable attention as a potential weight-loss strategy due to the low-carb diet craze, which started in the 1970s with the Atkins diet (a very low-carbohydrate, high-protein diet, which was a commercial success and popularized low-carb diets to a new level). Today, other low-carb diets including the Paleo, South Beach, and Dukan diets are all high in protein but moderate in fat. In contrast, the ketogenic diet is distinctive for its exceptionally high-fat content, typically 70% to 80%, though with only a moderate intake of protein.


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.
Anyways, I am feeling so much better without the weight, my sleep apnea is gone, my blood glucose is lower and the edema in my legs is gone. But I do have concerns about the saturated fat, my HDL/LDL and I do not like the “nail polish breath”. Once I reach my goal, I plan to transition to more of a Mediterranean style diet but still with logging and I hope to be able to keep the weight off.
Thank you SO much for your blog post. My niece went into Ketoacidosis recently and I compared it to what a former RN in my neighborhood has been doing & recommending to everyone (& they believe her because she used to be a nurse, but definitely NOT a Dietitian). Anyway, after reading, I learned they are completely different, however if a healthy person does test for ketones in their blood, what are acceptable levels? (This same nurse tests for ketone levels). I appreciate how much work you put into this write-up and honest feedback! (I work with 2 RDs who agree with you!)
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A. When you first start a ketogenic diet, you may temporarily experience flu-like symptoms such as dizziness, brain fog, irritability, stomach trouble, insomnia, and more, as your body switches from burning glucose to burning fat. These symptoms can occur for a few days up to a few weeks and are a natural reaction that you’re encouraged to push through. You can alleviate symptoms by increasing hydration, electrolytes, and natural salt consumption. Get lots of rest and exercise gently. Lastly, consuming activated charcoal binds any toxins stored in the fat you’re shedding and can reduce nasty detox symptoms.


When you eat foods high in carbohydrates and fat, your body naturally produces glucose. Carbohydrates are the easiest thing for the body to process, and therefore it will use them first – resulting in the excess fats to be stored immediately. In turn, this causes weight gain and health problems that are associated with high fat, high carbohydrate diets (NOT keto).
There are so many tricks, shortcuts, and gimmicks out there on achieving optimal ketosis – I’d suggest you don’t bother with any of that. Optimal ketosis can be accomplished through dietary nutrition alone (aka just eating food). You shouldn’t need a magic pill to do it. Just stay strict, remain vigilant, and be focused on recording what you eat (to make sure your carb and protein intake are correct).
But for evidence of the Keto Diet’s more immediate effects, Noakes brings up South African athlete Bruce Fordyce, 60, who won the country’s biggest ultramarathon, the 56-mile Comrades, a record nine times. He ate high-carb his whole life, eventually putting on weight and becoming insulin resistant. Recently, though, he switched to a high-fat diet—and has regained his former waistline and dramatically improved his marathon times. Little by little, according to Noakes, we’re learning. “This is the single most important health intervention we can make as doctors,” he says. “And as nations.”

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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!
Our online calculators, converters, counters, and content are provided "as is", free of charge, and without any warranty or guarantee. Each tool is carefully developed and rigorously tested, and our content is well-sourced, but despite our best effort it is possible they contain errors. We are not to be held responsible for any resulting damages from proper or improper use of the service. See our full terms of service.

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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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Today makes 3 months since I started Keto and I have lost 43 lbs. The way it works for me is by using a meal logging App and sticking to it daily and trying to reach the macronutrient goal percentages as closely as possible. In addition, I have found that, for me, “unlimited amounts of protein and fat” does NOT work for me. I have to carefully restrict total daily calories and mix it “intermittent fasting” with lots of hydration to get the ketosis going. I also find that if I can eat low-carb high fiber greens like arugula, celery, non-peanut no-added-sugar seven-nut butter, walnuts, avocado and lots of water and soups, it helps me avoid constipation. I am feeling so much better without the weight, my sleep apnea is gone and edema in my legs is gone but I do have concerns about the saturated fat, my HDL/LDL and I do not like the “nail polish breath”. I have also read many articles on Keto and most are either “all in” or “no way” so I would like to thank you for the “balanced discussion” in this article. It must have taken lots of effort for a nutritionist to examine Keto in a balanced, objective style. Thanks again.

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I’ve lost lots of weight on the keto diet (over 100lbs) so the comment about the weight losses being water is just absurd. And I can sustain it quite easily as long as I have the right foods in the house – just like any dietary ha it you want to maintain. The Mediterranean diet was just ranked as the #1 diet, but I bet if there were Oreos in the house, I couldn’t maintain that diet either. The “low fat” diet that we’ve all been told is so good for us is not based on sound science. It’s based on the lipids theory from the 1930s and has since been denounced due to the researcher’s omittence of any data that didn’t fit his desired model. Also, the idea that somehow because you’re eliminating a macronutrient (carbs are not a food group), you’re also reducing food intake overall, and THAT’S the reason for weight loss, is utterly false. I eat WAY more on the keto diet than I ever did when I wasn’t paying attention. My brain, body, emotions, and weight all run better on ketones than they ever did on glycogen. I actually believe that ketosis is probably the way we were designed (or evolved) to operate. Think about it… agriculture (growing carbs for eating) is only something we’ve done in the last 10,000 years. Before that, we’d eat meat all fall, winter, spring, and early summer, then gorge ourselves on carbs in the late summer to store up fat, and then do it all over again in the fall. Just because we have access to an abundance of carbs doesn’t mean that’s how we are meant to live. And for hose who think that only eating meat is horribly bad for you, look at the Inuits, the aborigines, and other people groups around the world, who until the west interrupted with colonization and exploration, loved solely on high fat animal products. And guess what, they were healthier before we showed them how easy and tasty bread was.

I went back to school for Medical Laboratory Science which involved a lot of chemistry and physiology. I pieced together what I had learned through dieting over the years and how the body works — and I have to say that I am really waiting for the medical community — doctors and nutritionists to finally get on board with lower carb diets. If dropping 80-100 pounds isn’t successful then I don’t know what is. I don’t really care how “unhealthy” you call it because of how rapid the weight loss is. How unhealthy is being obese in the first place?
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Two years ago, LeBron James famously lost 25 pounds and upped his late-game endurance by cutting carbs and sugars from his diet. Tim Ferriss, the author of the Four-Hour self-improvement book series, followed a strict keto diet to cure his Lyme disease, and performs a long multi-day fast every four months as a means, he says, of pushing ketosis further and starving incipient pre-cancerous cells of sugar (more on that later). Last summer, Sami Inkinen, the ultrafit co-founder of real estate juggernaut Trulia, rowed with his wife from California to Hawaii in record time on a keto diet, to promote high-fat eating and raise awareness about the dangers of too much sugar. The Keto Diet, say its ardent supporters, is a natural way to literally reprogram your metabolism and transition to an upgraded operating system. You’ll ultimately feel better and perform better, and your body fat will plummet.

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Been doing keto since Dec. 26, 2018. I started for weight loss but got a few bonuses so far. Haven’t had a hotflash since starting, sleep so much better, brain fog gone and more energy! I’m perimenopause. I researched a lot before starting…realized the SAD way of eating is horrible. Carbs and sugar are not necessary. Dr. Phinny and Dr. Volek have the science behind this on YouTube (videos). Quite eye opening.

Is popcorn allowed on a ketogenic diet


I’ve had many people ask for a Keto Grocery List. At first, I was hesitant because I am a picky eater and tend to stick to the same foods over and over. I know that most people eat a larger variety of foods than I do. At the same time, when I was researching Keto Grocery Lists, so many seemed overwhelming and included many foods that even after almost a year of following a Keto Diet I have never used.
Over 8–10 mmol/l: It’s normally impossible to get to this level just by eating a keto diet. It means that something is wrong. The most common cause by far is type 1 diabetes, with severe lack of insulin. Symptoms include feeling very sick with nausea, vomiting, abdominal pain and confusion. The possible end result, ketoacidosis, may be fatal and requires immediate medical care. Learn more

How long does it take for Keto tablets to work

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