It starts with limiting carbohydrate intake to just 20–30 net grams per day. “Net carbs” describes the amount of carbs remaining once dietary fiber is taken into account. Because fiber is indigestible once consumed, simply don’t count grams of fiber toward their daily carb allotment. So that means subtracting grams of fiber from total carb games, to give you the total net carbs.

Keto flu symptoms and side effects can include feeling tired, having difficulty sleeping, digestive issues like constipation, weakness during workouts, being moody, losing libido and having bad breath. Fortunately, these side effects don’t affect everyone and often only last for 1–2 weeks. (And yes, you CAN build muscle on keto.) Overall, symptoms go away as your body adjusts to being in ketosis.

Meat – Unprocessed meats are low carb and keto-friendly, and organic and grass-fed meat might be even healthier. But remember that keto is a high-fat diet, not high protein, so you don’t need huge amounts of meat. Excess protein (more than your body needs) is converted to glucose, making it harder to get into ketosis. A normal amount of meat is enough.


Having tempting, unhealthy foods in your home is one of the biggest reasons for failure when starting any diet. To maximize your chances of success with the keto diet, you need to remove as many triggers as you can. This crucial step will help prevent moments of weakness from ruining all your hard work.If you aren’t living alone, make sure to discuss with your family or housemates before throwing anything out. If some items are simply not yours to throw out, try to compromise and agree on a special location so you can keep them out of sight.
Variations on the Johns Hopkins protocol are common. The initiation can be performed using outpatient clinics rather than requiring a stay in hospital. Often, no initial fast is used (fasting increases the risk of acidosis, hypoglycaemia, and weight loss). Rather than increasing meal sizes over the three-day initiation, some institutions maintain meal size, but alter the ketogenic ratio from 2:1 to 4:1.[9]
A: The most common ways to track your carbs is through MyFitnessPal and their mobile app. You cannot track net carbs on the app, although you can track your total carb intake and your total fiber intake. To get your net carbs, just subtract your total fiber intake from your total carb intake. I have written an article on How to Track Carbs on MyFitnessPal.
When you’re eating the foods that get you there (more on that in a minute), your body can enter a state of ketosis in one to three days, she adds. During the diet, the majority of calories you consume come from fat, with a little protein and very little carbohydrates. Ketosis also happens if you eat a very low-calorie diet — think doctor-supervised, only when medically recommended diets of 600 to 800 total calories. 

Like nuts, seeds are great for a snack on the go. But they're also a fun, crunchy addition to a salad. In addition to being low-carb and high-fat, seeds also offer a good serving of protein, which will help keep you full throughout the day. Listed in order of lowest to highest carb content per 1-ounce serving, the best seeds for the keto diet include:
It prompts the question: why is this incredibly challenging, rigid, expensive diet so popular? One answer is the “modern caveman” narrative, as strong among keto advocates as it was with its paleo predecessor. This speaks to the compelling, but misplaced, notion that illness is simply a result of modern food processing practices and lifestyles, and can be reversed by returning to a simpler time. But a diet is a diet is a diet, and they all work the same way – by reducing the net amount of energy consumed. Keto diets may have a slight advantage, as the high fat intake is hypothesised to have satiating properties, helping you stay fuller for longer. But in reality, we have little evidence to show that keto is more effective in the long run than any other diet – or, indeed, that any diet succeeds in keeping off weight.
A Cochrane systematic review in 2018 found and analysed eleven randomized controlled trials of ketogenic diet in people with epilepsy for whom drugs failed to control their seizures.[2] Six of the trials compared a group assigned to a ketogenic diet with a group not assigned to one. The other trials compared types of diets or ways of introducing them to make them more tolerable.[2] In the largest trial of the ketogenic diet with a non-diet control[16], nearly 38% of the children and young people had half or fewer seizures with the diet compared 6% with the group not assigned to the diet. Two large trials of the Modified Atkins Diet compared to a non-diet control had similar results, with over 50% of children having half or fewer seizures with the diet compared to around 10% in the control group.[2]
The good news is there are things you can do to help alleviate those symptoms. Firstly, you should see your doctor before going on the diet to get the thumbs up. Then, if you're experiencing such symptoms and they're not the result of something else (like the actual flu), start by drinking plenty of fluid, while avoiding activities that can dehydrate you such as an intense workout. Dr Evelyn Lewin also suggest increasing your salt intake by adding half a teaspoon to two teaspoons of salt into your food. if you're able to persist through these symptoms, you’ll quickly transition through this stage and come out the other side bursting with energy.
I eat relatively healthy and fairly low carb (I am already gluten free). I am interested in getting into Ketosis for the the health benefits, but am quite thin for a guy and don’t want to lose any weight. I look at the sample diet above and am pretty sure I would drop weight quickly (I consume about 2,500+ calories daily now). I eat 3 meals plus 2-3 snacks (snacks mostly of nuts (with raisins that would have to go), greek yogurt (would switch to plain), peanut butter, cheese and fruit (would need to reduce qty)). Would eating straight up butter be ok for additional calories also once I am in Ketosis?
The popular belief that high-fat diets cause obesity and several other diseases such as coronary heart disease, diabetes, and cancer has not been observed in recent epidemiological studies. Studies carried out in animals that were fed high-fat diets did not show a specific causal relationship between dietary fat and obesity. On the contrary, very-low-carbohydrate and high-fat diets such as the ketogenic diet have shown to beneficial to weight loss. 

A Cochrane systematic review in 2018 found and analysed eleven randomized controlled trials of ketogenic diet in people with epilepsy for whom drugs failed to control their seizures.[2] Six of the trials compared a group assigned to a ketogenic diet with a group not assigned to one. The other trials compared types of diets or ways of introducing them to make them more tolerable.[2] In the largest trial of the ketogenic diet with a non-diet control[16], nearly 38% of the children and young people had half or fewer seizures with the diet compared 6% with the group not assigned to the diet. Two large trials of the Modified Atkins Diet compared to a non-diet control had similar results, with over 50% of children having half or fewer seizures with the diet compared to around 10% in the control group.[2]
“One of the best meal planning tips I’ve ever received is to structure breakfast and lunch so that you don’t have to think too much about it,” says Emily Bartlett, co-founder of Real Plans. “If you’re OK with repetition, it’s ideal to have a simple selection of recipes for breakfast—including some that can be taken on the go. For lunch, go ahead and use your leftovers with a fresh green salad, and be sure to include a dressing that you really love.” Before you make your keto diet menu, check out the 13 things doctors want you to know about the keto diet.
If you’ve decided to move forward in trying the keto diet, you will want to stick to the parameters of the eating plan. Roughly 60 to 80 percent of your calories will come from fats. That means you’ll eat meats, fats, and oils, and a very limited amount of nonstarchy vegetables, she says. (This is different from a traditional low-carb diet, as even fewer carbs are allowed on the keto diet.)

Ketone bodies synthesized in the body can be easily utilized for energy production by heart, muscle tissue, and the kidneys. Ketone bodies also can cross the blood-brain barrier to provide an alternative source of energy to the brain. RBCs and the liver do not utilize ketones due to lack of mitochondria and enzyme diaphorase respectively. Ketone body production depends on several factors such as resting basal metabolic rate (BMR), body mass index (BMI), and body fat percentage. Ketone bodies produce more adenosine triphosphate in comparison to glucose, sometimes aptly called a "super fuel." One hundred grams of acetoacetate generates 9400 grams of ATP, and 100 g of beta-hydroxybutyrate yields 10,500 grams of ATP; whereas, 100 grams of glucose produces only 8,700 grams of ATP. This allows the body to maintain efficient fuel production even during a caloric deficit. Ketone bodies also decrease free radical damage and enhance antioxidant capacity.
The good news is there are things you can do to help alleviate those symptoms. Firstly, you should see your doctor before going on the diet to get the thumbs up. Then, if you're experiencing such symptoms and they're not the result of something else (like the actual flu), start by drinking plenty of fluid, while avoiding activities that can dehydrate you such as an intense workout. Dr Evelyn Lewin also suggest increasing your salt intake by adding half a teaspoon to two teaspoons of salt into your food. if you're able to persist through these symptoms, you’ll quickly transition through this stage and come out the other side bursting with energy.
Very happy to have stumbled across your blog site (during a recipe search)  only to realise that I have recently purchased 2 of your books (I'm in Australia). Both of which I like.  I have been doing this way of eating since February, switched from WW which was progressing slowly and I was often hungry. I am never hungry on this plan and I am finding it so much easier. And I am losing weight twice as fast. After about 2 1/2 months doing Keto I realised that the lists I was using for a resource for net carbs in foods was completely wrong. It said mushrooms was 0.3 net carb per 100g and I was happily having 200g thinking it was 0.6g and it wasn't. I ended up checking some lists against the USA Agriculture list and found all were wrong.  So I started to make my own list using that website. This was a bit of a pain but at least I knew it was accurate. Anyway,  I found your site and could stop doing my list. YAY!  🙏 Thank you so much for providing accurate information that you have referenced and for all the other guides and recipes you have shared.  I really wish these guides were in my books though (I have your latest book), so can you please consider for the next book 😁. I had to print them after saving it to MS word for a friend (that has also bought a book)  and it's pages of poorly edited A4 paper.  Many thanks again 🙏
Frederick F. Samaha, M.D., Nayyar Iqbal, M.D., Prakash Seshadri, M.D., Kathryn L. Chicano, C.R.N.P., Denise A. Daily, R.D., Joyce McGrory, C.R.N.P., Terrence Williams, B.S., Monica Williams, B.S., Edward J. Gracely, Ph.D., and Linda Stern, M.D., “A Low-Carbohydrate as Compared with a Low-Fat Diet in Severe Obesity,” N Engl J Med 2003; 348:2074-2081. http://www.nejm.org/doi/full/10.1056/NEJMoa022637.
if you are not eating organic or wild red and other meats and also ensuring they’ve not been vaccinated with “the usual” poisons that is so ‘mainstream’ now and putting all of humanity at risk, you’re putting yourself and even your offspring at huge risk! Any benefit you may want to derive from following a ketogenic or any diet is pointless in light of what science has known and proven over 20 years ago and which mainstream health care professionals and providers are, respectfully, ignorant of (that’s what they’ve been led to believe by those invested in pharma and their regulatory bodies). If you don’t believe me, watch “The Truth About Vaccines” with an open mind. You won’t regret it. (I have absolutely no investment in nor connection to the producers of that docu~series, I have simply had my “mind blown” by the facts … I’ve been a holistic health practitioner and student for over 40 years so I’m not “convinced” easily.
Aude, Y., A. S, Agatston, F. Lopez-Jimenez, et al. “The National Cholesterol Education Program Diet vs a Diet Lower in Carbohydrates and Higher in Protein and Monounsaturated Fat: A Randomized Trial.” JAMA Internal Medicine 164, no. 19 (2004): 2141–46. doi: 10.1001/archinte.164.19.2141. jamanetwork.com/journals/jamainternalmedicine/article-abstract/217514.
Long-term use of the ketogenic diet in children increases the risk of slowed or stunted growth, bone fractures, and kidney stones.[18] The diet reduces levels of insulin-like growth factor 1, which is important for childhood growth. Like many anticonvulsant drugs, the ketogenic diet has an adverse effect on bone health. Many factors may be involved such as acidosis and suppressed growth hormone.[38] About one in 20 children on the ketogenic diet develop kidney stones (compared with one in several thousand for the general population). A class of anticonvulsants known as carbonic anhydrase inhibitors (topiramate, zonisamide) are known to increase the risk of kidney stones, but the combination of these anticonvulsants and the ketogenic diet does not appear to elevate the risk above that of the diet alone.[39] The stones are treatable and do not justify discontinuation of the diet.[39] Johns Hopkins Hospital now gives oral potassium citrate supplements to all ketogenic diet patients, resulting in one-seventh of the incidence of kidney stones.[40] However, this empiric usage has not been tested in a prospective controlled trial.[9] Kidney stone formation (nephrolithiasis) is associated with the diet for four reasons:[39]
I have spent weeks reading and learning about the Keto diet plan, downloading random recipes that my husband might even try, and have been overwhelmed with all the information. I was pleased to find your system and how organized everything seems to be. The only question I have is will I be able to “temporarily suspend” my subscription if I find there are more recipes than I have time to prepare. I want to only do about 3 per week and repeat them as leftovers, since I have very little time after working a 12-hour shift, to do much cooking. Once I “catch up,” I would reinstate my subscription. Is that an option? Looking forward to trying out your program.
Now is the time to forget the 1980s strategy of low-fat/reduced-fat/fat-free. When you're assembling your keto diet food stash, go full-fat. And don't stress over the dietary cholesterol content, a factor of how much animal protein you eat, suggests a study published in The Journal of Nutrition. For the healthiest blood cholesterol levels, instead focus on consuming a higher ratio of unsaturated fats (flaxseed, olive oil, nuts) to saturated fats (lard, red meat, palm oil, butter).

If you’re looking to get a jump start on your health and fitness goals this year, you may be thinking about trying the ketogenic diet. Maybe you’ve heard the phrase before — it’s a huge diet buzzword — but aren’t sure what it means. Here’s a primer: The ketogenic diet is an eating plan that drives your body into ketosis, a state where the body uses fat as a primary fuel source (instead of carbohydrates), says Stacey Mattinson, RDN, who is based in Austin, Texas.


Ketone bodies synthesized in the body can be easily utilized for energy production by heart, muscle tissue, and the kidneys. Ketone bodies also can cross the blood-brain barrier to provide an alternative source of energy to the brain. RBCs and the liver do not utilize ketones due to lack of mitochondria and enzyme diaphorase respectively. Ketone body production depends on several factors such as resting basal metabolic rate (BMR), body mass index (BMI), and body fat percentage. Ketone bodies produce more adenosine triphosphate in comparison to glucose, sometimes aptly called a "super fuel." One hundred grams of acetoacetate generates 9400 grams of ATP, and 100 g of beta-hydroxybutyrate yields 10,500 grams of ATP; whereas, 100 grams of glucose produces only 8,700 grams of ATP. This allows the body to maintain efficient fuel production even during a caloric deficit. Ketone bodies also decrease free radical damage and enhance antioxidant capacity.
In order to transition and remain in this state, aiming for about 30–50 net grams is typically the recommended amount of total carbs to start with. This is considered a more moderate or flexible approach but can be less overwhelming to begin with. Once you’re more accustomed to “eating keto,” you can choose to lower carbs even more if you’d like (perhaps only from time to time), down to about 20 grams of net carbs daily. This is considered the standard, “strict” amount that many keto dieters aim to adhere to for best results, but remember that everyone is a bit different.
You’ve probably heard about the low carb, high fat diet that’s so popular among actors and models, and with good reason: low carb diets offer proper nourishment with whole foods, while keeping your body burning fat for fuel. This is a great way to be, as it makes fat loss largely effortless! But where does this “ketogenic” word fit into the picture?
Burning fat for fuel is ultimately what happens when you eat keto and your body finally becomes fat adapted. You will no longer be a glucose or sugar burner and you’ll begin to use your own body fat for fuel, it’s a beautiful thing. You can read all about my Keto 6 week results and you’ll even get to see the pics to prove the changes my body made in fat loss.
How many calories should I eat a day? A calorie is an amount of energy that a particular food provides. Consuming more calories than needed will result in weight gain, consuming too few will result in weight loss. How many calories a person should eat each day depends on a variety of factors, such as age, size, sex, activity levels, and general health. Read now
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.
Reduced hunger. Many people experience a marked reduction in hunger on a keto diet. This may be caused by an increased ability of the body to be fueled by its fat stores. Many people feel great when they eat just once or twice a day, and may automatically end up doing a form of intermittent fasting. This saves time and money, while also speeding up weight loss.
Keto is a very low carb diet, often it means no more than 20 net carbs a day. I had been low carb for 4 years prior to going keto a year ago, my daily carb intake was 50-70 grams a day and the carbs were coming mostly from non starchy vegetables. But yet even being lower carb than the standard American diet, it wasn’t enough for me to still not crave sugar and carbs.
Wondering how many carb foods you can eat and still be “in ketosis”? The traditional ketogenic diet, created for those with epilepsy consisted of getting about 75 percent of calories from sources of fat (such as oils or fattier cuts of meat), 5 percent from carbohydrates and 20 percent from protein. For most people a less strict version (what I call a “modified keto diet”) can still help promote weight loss in a safe, and often very fast, way.

The ketogenic diet has been studied in at least 14 rodent animal models of seizures. It is protective in many of these models and has a different protection profile than any known anticonvulsant. Conversely, fenofibrate, not used clinically as an antiepileptic, exhibits experimental anticonvulsant properties in adult rats comparable to the ketogenic diet.[58] This, together with studies showing its efficacy in patients who have failed to achieve seizure control on half a dozen drugs, suggests a unique mechanism of action.[56]
Having tempting, unhealthy foods in your home is one of the biggest reasons for failure when starting any diet. To maximize your chances of success with the keto diet, you need to remove as many triggers as you can. This crucial step will help prevent moments of weakness from ruining all your hard work.If you aren’t living alone, make sure to discuss with your family or housemates before throwing anything out. If some items are simply not yours to throw out, try to compromise and agree on a special location so you can keep them out of sight.

The ketogenic diet has recently become very popular, and many food companies want to cash in by putting a “ketogenic” or “low carb” label on a new product. Be very cautious of special “keto” or “low-carb” products, such as pastas, chocolate bars, energy bars, protein powders, snack foods, cakes, cookies and other “low carb” or “ketogenic” treats. Read all labels carefully for natural low carb ingredients. The fewer ingredients the better.


The guide contains scientific references. You can find these in the notes throughout the text, and click the links to read the peer-reviewed scientific papers. When appropriate we include a grading of the strength of the evidence, with a link to our policy on this. Our evidence-based guides are updated at least once per year to reflect and reference the latest science on the topic.

Some low-carb dieters go all out on butter-topped bacon and steak and eat very little produce, but that’s not exactly the smartest move, says Kristen Mancinelli, RD, author of The Ketogenic Diet. (We’ll get more into why that is soon.) “A big misconception is that you should just put meat at the center of your plate and add more fat on top,” she says.


The day before admission to hospital, the proportion of carbohydrate in the diet may be decreased and the patient begins fasting after his or her evening meal.[19] On admission, only calorie- and caffeine-free fluids[37] are allowed until dinner, which consists of "eggnog"[Note 8] restricted to one-third of the typical calories for a meal. The following breakfast and lunch are similar, and on the second day, the "eggnog" dinner is increased to two-thirds of a typical meal's caloric content. By the third day, dinner contains the full calorie quota and is a standard ketogenic meal (not "eggnog"). After a ketogenic breakfast on the fourth day, the patient is discharged. Where possible, the patient's current medicines are changed to carbohydrate-free formulations.[19]


Wondering how many carb foods you can eat and still be “in ketosis”? The traditional ketogenic diet, created for those with epilepsy consisted of getting about 75 percent of calories from sources of fat (such as oils or fattier cuts of meat), 5 percent from carbohydrates and 20 percent from protein. For most people a less strict version (what I call a “modified keto diet”) can still help promote weight loss in a safe, and often very fast, way.
When in the hospital, glucose levels are checked several times daily and the patient is monitored for signs of symptomatic ketosis (which can be treated with a small quantity of orange juice). Lack of energy and lethargy are common, but disappear within two weeks.[17] The parents attend classes over the first three full days, which cover nutrition, managing the diet, preparing meals, avoiding sugar, and handling illness.[19] The level of parental education and commitment required is higher than with medication.[44]
One assumption about the ketogenic diet is that you're strictly forbidden to eat any sources of sugar, including fruits. While keto meal plans limit fruit to an extent, there are plenty of low-sugar, and thus low-carb, fruits worth including to ensure a balanced diet. Berries, specifically, have the highest levels of antioxidants of all fruits and can even help stabilize blood sugar levels due to their high fiber content. Listed in order of lowest to highest carb content per 100 grams (typically, around a half-cup), keto-approved fruits include:
The easiest macro to calculate in the ketogenic diet is fat. Once you've got your carbs and protein set, simply fill the rest of your daily calorie needs with fat sources. If you find yourself wanting to gain a bit of weight, add approximately 500 calories, or 55 grams. If you want to lose weight, cut down on your fat intake by 200-500 calories, or 22-55 grams.
While there are delicious-looking ketogenic recipes and meal plans online, experts like Weaver warn that you’ll want to avoid relying too much on artificial sweeteners and unhealthy foods for your keto diet menu. Make sure your grocery list includes healthy fats like avocados, coconut oil, olive oil. This is what really happens to your body on the keto diet.

This is one area where full keto and Bulletproof differ. Except for coconut, all nuts and legumes are suspect on the Bulletproof Diet and should be limited. All expose you to high amounts of omega-6s, inflammatory oxidized fats, mold toxins, and phytates (plant anti-nutrients). Peanuts are one of the main sources of mold toxins in our diets, and often trigger allergic responses with inflammatory polyunsaturated fats, lectins and histamines. The Bulletproof Diet also excludes all soy products due to their phytoestrogen content, which messes with your hormones and may promote cancer.
I have been eating this way (very low carb, high fat, protein in between) for around 3 years now. I have found that for me I can MAINTAIN quite easily at an ideal weight and eating to satiety, but in order to actually LOSE weight, I have to at least have a very small calorie deficit. And though the change is gradual, it is sustainable and quite immediate (just little by little). The amount of that calorie deficit required in order to drop excess varies a lot from one individual to the next though, I think. I am particularly intolerant to hunger, and so I cannot overly emphasize how small of a deficit I will allow for. The nice thing about that though is that the hunger is far more pleasant in the absence of carbs.

If you need to eat more or fewer calories per day, you can adjust accordingly by simply taking out or adding a bit more of the ingredients already included in a recipe. For example, adding/removing a tablespoon of olive oil or butter will add/remove about 100 calories. If you like or dislike certain recipes, feel free to shift things around. Make sure to keep an eye on the calories so you’re still falling within an acceptable range of your daily goal.
"Plenty of people jump right in, thinking all they have to do is cut carbs and increase fat. All of a sudden, they hit a wall and get 'keto flu.' They feel tired, lethargic, and experience headaches," Wittrock says. "The primary reason they get these symptoms is lack of the three primary electrolytes: sodium, potassium, and magnesium. If you're deficient in any of these, you'll suffer mentally and physically. This is the single biggest reason people fail on the keto diet."
In the first week, many people report headaches, mental fogginess, dizziness, and aggravation. Most of the time, this is the result of your electrolytes being flushed out, as ketosis has a diuretic effect. Make sure you drink plenty of water and keep your sodium intake up.6One of the fathers of keto, Dr. Phinney, shows that electrolyte levels (especially sodium) can become unbalanced with low carb intake.
The “Slaw Hash” Which is a actually eggroll filling without the wrapper is delicious even without being keto. My husband requests it every other week and he isn’t even really fond of cabbage. I use shredded cabbage, a few finely sliced white mushrooms, sliced white onion, ground pork or turkey, soy sauce, white pepper, a cap-full of bombay sapphire gin (tastes sort of like sake, without having to add a TON of sake), and one shredded carrot.
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