High-protein ketogenic diet (HPKD): This version of the keto diet is often followed by folks who want to preserve their muscle mass like bodybuilders and older people. Rather than protein making up 20 percent of the diet, here it’s 30 percent. Meanwhile, fat goes down to 65 percent of the diet and carbs stay at 5 percent. (Caution: folks with kidney issues shouldn’t up their protein too much.)
Hi Gigi, Low carb and keto is about the balance of macronutrients eaten (fat, protein and carbs), not specifically meat or lack thereof. Most people on keto do eat meat, though some people do vegetarian keto. Fat is actually necessary for many body processes. There is no issue for the kidneys with a high fat diet, but if you eat too much protein that isn’t great for the kidneys. It’s a common misconception that keto is high protein (it isn’t). Keto is great for diabetics as it naturally helps stabilize insulin. All of this being said, please know I’m not a doctor and you should consult your doctor on any medical questions or before starting any diet. If you have more questions that aren’t medical questions, I recommend our low carb & keto support group here.

For some, ketosis can cause more negative than positive side effects. Dorena Rode, a 52-year-old author, and speaker from Occidental, California, tried the diet for a month and experienced heart palpitations and dizziness. Unlike Drew, Rode says her cholesterol increased from 192 to 250 mg/dL after she introduced more fat into her diet. (Less than 200 mg/dL is considered desirable, while anything over 240 mg/dL is considered high.)
The understanding of “What is a Keto Diet” has become blurred thanks to the proliferation of Keto Diet “experts”. Many of these “experts” recommend several variants of Keto Diet and lifestyles which they claim can be modified to any walk of life. However, in most instances what they are actually recommending are Low-Carb lifestyle programs. These are neither weight loss programs, nor Ketogenic. With that said, there’s nothing wrong with adopting a Low-Carb lifestyle, but if your goal is weight loss, then changing your eating lifestyle should come after you’ve achieved your weight loss goals.
As a gut health doctor, this is my biggest pet peeve about keto diets: They sometimes overemphasize foods high in dietary fat like meat and full-fat dairy at the expense of gut-supporting plant foods. Knock your gut flora out of balance and you're almost sure to hit a plateau since gut health affects weight loss. Even on the strictest keto diet, you can incorporate fermented and cultured foods including sauerkraut, kimchi, and kefir.
Cholesterol serves a number of important roles in the body. First of all, cholesterol is a critical structural element in certain tissues such as our brain and nervous system. In fact, it is estimated that around 25% of our cholesterol can be found in the brain. Just to highlight our failed fat philosophy over the years, higher saturated fat intake and high cholesterol levels are associated with better mental function in old age (1)!

Many people on the keto diet brew low-toxin coffee (Bulletproof is a good source) with a heaping tablespoon of grass-fed butter, but I personally prefer green tea or decaffeinated coffee with a maximum of ½ to 1 tablespoon MCT oil. (As I’ve described in previous articles, I have the gene for slow caffeine metabolism, so drinking too much caffeine raises my cortisol and can interfere with the benefits of ketosis.)
A survey in 2005 of 88 paediatric neurologists in the US found that 36% regularly prescribed the diet after three or more drugs had failed, 24% occasionally prescribed the diet as a last resort, 24% had only prescribed the diet in a few rare cases, and 16% had never prescribed the diet. Several possible explanations exist for this gap between evidence and clinical practice.[34] One major factor may be the lack of adequately trained dietitians, who are needed to administer a ketogenic diet programme.[31]
Specific fiber goals for every day will depend on your overall intake, current weight, and weight-loss intentions. Thankfully, some high-fat, low-carb foods are also loaded with fiber. These include nuts and seeds, avocado, and squash. “I see so many clients go for high protein, high saturated fat, and no carb,” says Sunny Brigham, MS, CNS, a board-certified nutrition specialist with a private clinic in North Texas. “They become constipated because they aren’t getting enough fiber.” And that’s just one of the 11 hidden dangers of the keto diet. 

Your dietary needs change dramatically with keto. Sodium becomes a critical nutrient, as do magnesium and potassium. “At least in the initial stages of being on the keto diet, you will urinate more. One of the key electrolytes lost through urination is magnesium,” says Carolyn Dean, MD, ND, a health and nutrition expert and author of The Magnesium Miracle. “Magnesium is an energy mineral, which will help you burn fat and lose weight.”
While keto diets minimize sugar and other food sensitivities, they often allow full-fat dairy such as yogurt that, for some people, can stall fat loss. And some packaged keto-friendly foods (yes, there's a whole industry of keto-friendly cookies, candy, and other junk food!) can contain gluten, artificial sweeteners, and other reactive ingredients. These foods and additives cause dysbiosis (an imbalance between good and bad bugs), leaky gut syndrome, and increase insulin resistance, which raises blood sugar levels—stalling weight loss. Read your labels carefully: Food sensitivities can be sneaky and hide in foods that you would never suspect, like mustard.
Over the long-term the KD poses possible risks as well, although the evidence remains unclear on this topic. Consumption of a high fat diet, particularly saturated fat, is associated with increased cardiovascular risk (23) and consumption of saturated fat has been shown to acutely induce insulin resistance and raise blood triglyceride levels (12). Nevertheless, many KD studies have documented improvements in markers of cardiovascular risk, including improvements in vascular function (24) reduction in inflammatory markers (10), and other markers of cardiovascular health (13,20). Methodological issues, such as clear definitions of dietary interventions, may play a significant role in obscuring the underlying principles, however, it is clear that more targeted research is warranted.
Dieter beware: U.S. News & World Report, in its high-profile January cover story on "best diets," calls the DASH and Mediterranean diets tops for health, though these regimens represent the failed nutritional status quo of the last 50 years. It's clear that U.S. News — which employed an expert panel to rate 40 diets on various criteria — merely recapitulated questionable dietary advice that has gone by a succession of names since the 1970s — "low-fat," "DASH," "USDA-style," "plant-based." The basic set of recommendations have remained the same, emphasizing plant foods (grains, cereals, fruits and vegetables) over animal products (eggs, regular dairy, meat), and vegetable oils over natural animal fats such as butter. According to government data, Americans have largely followed these recommendations over the last 50 years, notably increasing their consumption of grains, vegetables and fruits and eating less whole milk, butter, meat and eggs. The outcome? In that time, rates of obesity and Type 2 diabetes have skyrocketed. Something has gone terribly wrong. Why would 25 doctors, dietitians and nutritionists on the U.S. News panel choose a dietary philosophy that has — so far, at least — failed us?
A ketogenic diet could be an interesting alternative to treat certain conditions, and may accelerate weight loss. But it is hard to follow and it can be heavy on red meat and other fatty, processed, and salty foods that are notoriously unhealthy. We also do not know much about its long-term effects, probably because it’s so hard to stick with that people can’t eat this way for a long time. It is also important to remember that “yo-yo diets” that lead to rapid weight loss fluctuation are associated with increased mortality. Instead of engaging in the next popular diet that would last only a few weeks to months (for most people that includes a ketogenic diet), try to embrace change that is sustainable over the long term. A balanced, unprocessed diet, rich in very colorful fruits and vegetables, lean meats, fish, whole grains, nuts, seeds, olive oil, and lots of water seems to have the best evidence for a long, healthier, vibrant life.
"Obese. That's what the doc said. He said if I didn't change I'd be Morbidly Obese. So stopped eating big macs and started out by walking. But it wasn't really enough to undo the damage. Then I found on Shark Tank. So I found it online and ordered it. I figured, it was worth a shot. I'm glad I did. It jumpstarted my weight loss! I started shedding the weight. I'm down 60 pounds after just 9 months! Thank you - you really saved my life!"
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.

“As a physician I was frustrated and distressed by patients’ worsening health and by the spiraling health care costs caused by diabetes, obesity and other chronic conditions, all linked to the food we eat. We help our patients improve their health and optimize their weight with prescribed lifestyle modification, teaching them the link between unhealthy, refined and processed foods and chronic illness. Our growing database of patients who have lost weight and improved cardio-metabolic markers demonstrates the benefits of low-carbohydrate, whole-food diets. In short, reducing the carbohydrate content of our meals controls hunger, promotes weight loss, and improves health.”


Sexual dysfunction in subjects with obesity has been scarcely studied. Recent studies evidenced a rate of sexual dysfunction in 29–60% of women and 24.8–45% of men with obesity [50]. In the current study, at baseline, the obese men reported a relatively good sexual function based on the EMAS–SFQ. The domains included in this questionnaire correlated with levels of testosterone, and the EMAS-SFQ scores reported in the current study are higher than those previously observed in patients with low levels of testosterone [27]. Accordingly, we did not find significant changes in the sexual function of men during the nutritional intervention. By contrast, women reported a general sexual dysfunction that improved, especially in the maximum ketosis phase, and then during the intervention. More concretely, women exhibited an improvement in excitation, lubrication, and orgasm capacity. Sexual dysfunction is usually related to impairments in parameters related to healthy, body image dissatisfaction, depressive symptoms, and lower levels of romantic relationship satisfaction [51]. Then, it could be hypothesized that the beneficial effects on several parameters of body composition and biochemicals induced by the VLCK diet, PNK method®, could be involved in an improvement in the sexual function of obese women.


If you're new to keto, watch out for hidden carbs. Generally, dairy products and nuts are a good way to meet your daily fat intake, but know that some of those items may contain more carbohydrates than you think. For example, yogurt topped with nuts may seem like a great keto-friendly snack, but a 5.3 ounce serving of plain yogurt has 12 grams of carbohydrates. Vanilla flavored yogurt has 24 grams of carbohydrates. Add an ounce of cashews, weighing in at nearly nine grams of carbs, and you’re up to 21 to 33 grams of carbs for that snack, which could knock you out of ketosis. Be sure to read nutrition labels carefully and pay careful attention to serving sizes. Track foods using a keto-specific app like Senza or KetoDiet can help you stay within your recommended daily carb intake.
A ketogenic diet could be an interesting alternative to treat certain conditions, and may accelerate weight loss. But it is hard to follow and it can be heavy on red meat and other fatty, processed, and salty foods that are notoriously unhealthy. We also do not know much about its long-term effects, probably because it’s so hard to stick with that people can’t eat this way for a long time. It is also important to remember that “yo-yo diets” that lead to rapid weight loss fluctuation are associated with increased mortality. Instead of engaging in the next popular diet that would last only a few weeks to months (for most people that includes a ketogenic diet), try to embrace change that is sustainable over the long term. A balanced, unprocessed diet, rich in very colorful fruits and vegetables, lean meats, fish, whole grains, nuts, seeds, olive oil, and lots of water seems to have the best evidence for a long, healthier, vibrant life.
Hello, I am doing IF 16:8 & my eating window is in the evening. I’m confused as to what to eat during those 8 hours. I’ve been eating 1 meal & a snack. Is this enough? I’ve been doing Keto dieting for 6 months. Initially lost 5 #. (Realize it was water #) Now I weigh more than I ever have, as of today!! Drink loads of water, eat healthy fats, mod protein & limited carbs, non processed. Can you help? Thanks!!
“Net carbs” and “impact carbs” are familiar phrases in ketogenic diets as well as diabetic diets. They are unregulated interchangeable terms invented by food manufacturers as a marketing strategy, appearing on some food labels to claim that the product contains less “usable” carbohydrate than is listed. [6] Net carbs or impact carbs are the amount of carbohydrate that are directly absorbed by the body and contribute calories. They are calculated by subtracting the amount of indigestible carbohydrates from the total carbohydrate amount. Indigestible (unabsorbed) carbohydrates include insoluble fibers from whole grains, fruits, and vegetables; and sugar alcohols, such as mannitol, sorbitol, and xylitol commonly used in sugar-free diabetic food products. However, these calculations are not an exact or reliable science because the effect of sugar alcohols on absorption and blood sugar can vary. Some sugar alcohols may still contribute calories and raise blood sugar. The total calorie level also does not change despite the amount of net carbs, which is an important factor with weight loss. There is debate even within the ketogenic diet community about the value of using net carbs.

4. Gomez-Arbelaez D., Bellido D., Castro A.I., Ordonez-Mayan L., Carreira J., Galban C., Martinez-Olmos M.A., Crujeiras A.B., Sajoux I., Casanueva F.F. Body composition changes after very-low-calorie ketogenic diet in obesity evaluated by 3 standardized methods. J. Clin. Endocrinol. Metab. 2017;102:488–498. doi: 10.1210/jc.2016-2385. [PubMed] [CrossRef] [Google Scholar]

“[This study] does support other existing research findings that you can indeed lose weight on a ketogenic-inducing diet, and higher levels of protein intake, while following a calorie-restricted diet does help preserve the loss of lean muscle mass,” says Lona Sandon, PhD, RDN, assistant professor in the department of clinical nutrition at the University of Texas Southwestern Medical Center in Dallas.
A ketogenic diet may be an option for some people who have had difficulty losing weight with other methods.  The exact ratio of fat, carbohydrate, and protein that is needed to achieve health benefits will vary among individuals due to their genetic makeup and body composition. Therefore, if one chooses to start a ketogenic diet, it is recommended to consult with one’s physician and a dietitian to closely monitor any biochemical changes after starting the regimen, and to create a meal plan that is tailored to one’s existing health conditions and to prevent nutritional deficiencies or other health complications. A dietitian may also provide guidance on reintroducing carbohydrates once weight loss is achieved.
Are you tracking your calorie intake? Healthy fats also have higher calories and can put you at or over your bodies calorie requirement. Calculate the calories that you have been eating over the past while and then check how many calories you should actually be taking in. If you want to lose weight you have to be in calorie deficit regardless of whether you are in ketosis or not.
While keto diets minimize sugar and other food sensitivities, they often allow full-fat dairy such as yogurt that, for some people, can stall fat loss. And some packaged keto-friendly foods (yes, there's a whole industry of keto-friendly cookies, candy, and other junk food!) can contain gluten, artificial sweeteners, and other reactive ingredients. These foods and additives cause dysbiosis (an imbalance between good and bad bugs), leaky gut syndrome, and increase insulin resistance, which raises blood sugar levels—stalling weight loss. Read your labels carefully: Food sensitivities can be sneaky and hide in foods that you would never suspect, like mustard.
You know you’re in ketosis by checking blood ketones with a hand-held ketone meter (a test for beta-hydroxybutyrate). A ketone meter can be purchased online for about $100-120, along with ketone test strips. You prick your finger and use a drop or two of blood to measure ketones. Aim for 0.5-3.0 mm. I use Precision Xtra, which can check for both ketones and glucose in the blood (useful if you’re overweight). Some people measure ketones in the urine or via a breath taste, but I’ve found them to be not as accurate.
I was a Corpsman (not a corpse-man as some recent somewhat fanatical president would say), and I can tell you many stories of Marines and Sailors who maintained restrictive diets (aka picky eaters). Most obvious was lack of sustaining energy (hypoglycemia) at mile 15 (with 80lbs of gear including a 6.5lb rifle and 200 rnds of ammo, etc.) and depletion of essential vitamins, electrolyte imbalance. They were always the first to collapse and have to hear me scold “see I told you so.” An IV of D5W usually does the trick (D is for dextrose, OMG!)
Oatmeal is something we all miss when it starts to get cold outside, but it is filled with carbs. You can easily make your own oatmeal by following one of the many recipes online. Or, if you’d like a different twist on oatmeal, give our Cinnamon Roll Oatmeal a try. Using what you might think are strange ingredients (cue cauliflower), you get an absolutely delicious faux oatmeal.
All of the patients followed a VLCK diet according to a commercial weight loss program (PNK Method), which includes lifestyle and behavioral modification support. The intervention included an evaluation by the specialist physician conducting the study and assessment by an expert dietician. All patients underwent a structured program of physical exercise with external supervision (16). This method is based on high-biological-value protein preparations obtained from cow milk, soya, avian eggs, green peas, and cereals. Each preparation contained 15 g protein, 4 g carbohydrates, 3 g fat, and 50 mg docosahexaenoic acid, and provided 90 to 100 kcal (16).
The Top 10 Things You Need to Know Before Going Keto: Thinking about giving the ketogenic diet a try? People are using it not only to lose weight, but to feel more energized, sleep better, and improve their mental focus. It’s not hype. The keto diet is a top health trend because it works. But before you go all in, here are the top 10 things you should know.
The results of the Bland-Altman approach in regard to the FM% are shown in Fig. 4. MF-BIA underestimates the FM% during all visits, although with increasing body fat there is a trend toward better agreement [Fig. 4(A)]. This negative slope was significant in visits C2 (P = 0.015), C3 (P = 0.003), and C4 (P = 0.005). Importantly, MF-BIA had a consistent variability of about 5% in determining FM% when compared with DXA. However, the concordance between DXA and ADP is shown in Fig. 4(B). In visits C1 (P = 0.005), C2 (P = 0.010), and C3 (P = 0.004) significant negative slopes were observed, indicating underestimation of ADP at lower levels of FM%, but ADP seemed to overestimate FM% with increasing body fat. During visit C-4, a similar pattern was observed, although the slope did not reach statistical significance (P = 0.093). During all visits there was a high variability in the FM% determined by ADP, reaching values of up to 20% in comparison with DXA.
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