A cyclic ketogenic diet (or carb-cycling) is a low-carbohydrate diet with intermittent periods of high or moderate carbohydrate consumption. This is a form of the general ketogenic diet that is used as a way to maximize fat loss while maintaining the ability to perform high-intensity exercise. A ketogenic diet limits the number of grams of carbohydrate the dieter may eat, which may be anywhere between 0 and 50g per day. The remainder of the caloric intake must come primarily from fat sources and protein sources in order to maintain ketosis (the condition in which the body burns fats and uses ketones instead of glucose for fuel).
To find out whether you have achieved ketosis, you can test your blood or urine for the presence of ketone bodies. Depending on your diet, your activity level, and your body type, it can take a couple of days to a couple of weeks to reach ketosis. Testing for ketosis is a personal preference. For some, it’s an added inconvenience; for others, it provides added incentive to stay on track.
At 469 pounds I restricted myself to a daily calorie intake between 1k-1.5k a day. Often I would even go down to 800 (not advocating this!). Well, i'm still alive today, down a ton of weight and I restrict myself to about 1.5-2k per day now. As others said, calorie restriction is required to lose, but generally speaking I just go by how I feel. If im full of energy, feeling great and not hitting my calories it's not really a big deal to me.

You can have a completely smooth transition into ketosis, or…not. While your body is adapting to using ketones as your new fuel source, you may experience a range of uncomfortable short-term symptoms. These symptoms are referred to as “the keto flu.” Low-sodium levels are often to blame for symptoms keto flu, since the kidneys secrete more sodium when you’re in ketosis, says Volek. A few side effects:
It’s no secret that carbs—especially refined ones like sugary cereals, white bread and pasta, or sweet drinks—cause your blood sugar to spike and dip. So it makes sense that eating less of them can help keep things nice and even. For healthy people, this can translate to more steady energy, less brain fog, and fewer sugary cravings, Mancinelli explains.
This is because the triglycerides from those fat cells are metabolized for energy while the cholesterol is not. The cholesterol is simply released into the blood where it will remain until removed by the liver, making it appear that our cholesterol has suddenly skyrocketed. Many people are quick to assume that this is due to an increase in dietary fat and cholesterol intake.

Stock up: Jet.com's new City Grocery service (available in select markets) makes it easy to ensure you always have keto-friendly veggies in the fridge. We love their delivery scheduling tool; simply fill your cart, then decide which day and timeframe you'd like your groceries delivered. One of our faves: Urban Roots Green Squash Veggie Noodles are great for whipping up low-carb "pasta" dishes.
I believe you’re “breaking your fast” by having Olive oil in the morning. Anything over 5 calories will cause an insulin spike. I’ve been intermittent fasting (IF) 16:8 for 4 months and have just recently moved to try ketosis. I’m exercising in a fasted state. I lost 7kg of fat. Can’t comment on how effective Keto is yet, my understanding is it’s excellent for optimal fat burning.
Christopher D. Gardner, PhD; Alexandre Kiazand, MD; Sofiya Alhassan, PhD; Soowon Kim, PhD; Randall S. Stafford, MD, PhD; Raymond R. Balise, PhD; Helena C. Kraemer, PhD; Abby C. King, PhD, “Comparison of the Atkins, Zone, Ornish, and LEARN Diets for Change in Weight and Related Risk Factors Among Overweight Premenopausal Women,” JAMA. 2007;297(9):969-977. http://jama.jamanetwork.com/art icle.aspx?articleid=205916.
Great information and questions! I finish eating before 6 and don’t have anything until noon or sometimes later, the next day! I do drink water and plain herbal tea. I take Omega 3’s, 2 Tbsps. of cold pressed virgin olive oil with lemon in water, in the morning! Around noon I have my BP coffee with butter and coconut cream. Primarily eggs, avocado, chicken, stir fry’s, nuts (mostly almonds), etc.

As keto grows in popularity, I see more women struggle with it. My anecdotal observation in my medical office and working with people online is that younger men seem to perform best, and better than women of all ages in nutritional ketosis. My female patients, myself included, may have more problems on keto, with their stress hormones (i.e. producing too much cortisol), thyroid function, and may even develop menstrual irregularities. Some women do fine, others may feel worse, suffer from mood issues, and can even gain weight. We are still learning more about why men fare better than women (it may be related to their higher muscle mass). Additionally, there are at least ten genes that may make a person less likely to benefit from keto.
This is a diet that requires a fair amount of attention to macronutrient quantities in order to work. Unlike the Atkins diet, which only restricts carbs, the ketogenic diet also restricts protein based on your activity level, so that extra protein doesn’t get converted into glucose. When people first go on nutritional ketosis, they sometimes focus on getting their carbs super low (i.e., less than 20 grams per day), and that can cause hormone and mood problems, especially in women. They make up the difference with too much protein, which then converts into sugar. So if you over-restrict carbs and eat too much protein, ketosis may not work. It’s not just a certain amount of carbs you want to target, but the right combination of fat, carbs, and protein for YOU.

The opposing viewpoint maintains that calories still count, but the type of food consumed has a trickle-down effect on the amount of energy expended, and what foods the body craves. It takes way more energy to process and store protein than it does carbohydrate or fat–this is called the thermic effect of food. Essentially, one burns more energy digesting protein because it requires more energy for the body to process. In one study, twice as much energy was expended after meals on a high-protein diet versus a high carbohydrate, low-fat diet.1
So rather than giving one-size-fits-all dietary advice or weaponizing the word “balanced” it might be better if the medical community suggested that there are Individual differences that need to be considered. This might also help those lay folk who have had success with one dietary lifestyle or another also realize that what’s valid for them may not be good advice for others.
Hey Michael, I would avoid it when just starting off because the carbs can add up fast and mostly of the canned whipped creams are full of additives. Once you’re adapted, I’d recommend making whipped cream from scratch and adding a dash of stevia or other keto-friendly sweetener. It’s super easy and much healthier than the canned versions (also tastes 1000x better!)
Ketosis improves certain forms of cellular healing, including mitochondrial biogenesis (the making of new, bigger, and higher energy-producing mitochondria), so that your cells are stronger and have more stamina, particularly when it comes to exercise. For example, some endurance and ultra-endurance athletes believe that their performance improves in nutritional ketosis compared to sugar burning, when they have more fat than carb reserves. But because of the limited data, and available data suggesting that athletes may actually perform worse on nutritional ketosis, I do not currently recommend it for elite athletes.

When the craving for alcohol was evaluated, no statistically significant changes were observed in the MACS scores through the nutritional intervention, taking all patients together (Table S1). However, when the analysis was performed considering the gender of participants in the study, men experienced a significant decrease in the total score through the study (p = 0.047). This decrease was more notable in the maximum ketosis phase as compared with baseline (−15.14; p = 0.047). Moreover, a statistically significant reduction was observed in the lack of inhibition item (−27.19; p = 0.042).

ATTENTION: If you speak English, assistance services, free of charge, are available to you. Call (877) 285-6920; TTY: (877) 893-8199. For assistance in the following languages: العربية | | 中文 | Nederlands | Français | Deutsche | ελληνικά | ગુજરાતી | हिंदी | Italiano | 日本語 | 한국어 | ਪੰਜਾਬੀ | Pennsylvania Nederlands | Polskie | русский | Español | Pilipino | اردو | Tiếng Việt
The ketogenic diet is amazing for losing weight and improving your health, so stick with it and don’t be afraid to make changes as needed. Track what you eat, stick within your keto macros, and test your ketone levels frequently to make sure you’re staying in ketosis. Most of all, give your body time to respond to the great changes you’re making for it.
Dr. Jockers, thank you so much for this clear and detailed article! I began a keto-style diet around August 2019. By late November, I had fallen from 197 lbs. to under 175 lbs., dropped from 28% to 18% body fat, and anecdotally felt much better in all aspects of my health. All of this occurred exclusively due to diet, I believe– I had almost no exercise routine to speak of, and my desk-based job is pretty sedentary. My family practice doc was surprised and happy with the results as well when I met with him in January… until my blood work came back showing total cholesterol at 257, triglycerides at 236, LDL-C at 162, and HDL at 50.
The keto diet (also known as ketogenic diet, low carb diet and LCHF diet) is a low carbohydrate, high fat diet. Maintaining this diet is a great tool for weight loss. More importantly though, according to an increasing number of studies, it helps reduce risk factors for diabetes, heart diseases, stroke, Alzheimer’s, epilepsy, and more1-6.On the keto diet, your body enters a metabolic state called ketosis. While in ketosis your body is using ketone bodies for energy instead of glucose. Ketone bodies are derived from fat and are a much more stable, steady source of energy than glucose, which is derived from carbohydrates.
While in ketosis, your body effectively uses fat for fuel. In general, the daily intake of net carbs required to enter ketosis could vary from 20 to 100 grams per day. Most people, who have experienced ketosis, claim to have reached that state at about 20-50 grams of net carbs per day. I'd suggest you start at 20-30 grams and see how you can adjust it for your needs.
The end result of the “ketone diet” is staying fueled off of circulating high ketones (which are also sometimes called ketone bodies) — which is what’s responsible for altering your metabolism in a way that some people like to say turns you into a “fat-burning machine.” Both in terms of how it feels physically and mentally, along with the impact it has on the body, being in ketosis is very different than a “glycolytic state,” where blood glucose (sugar) serves as the body’s energy source.
Low-carbohydrate diet advocates including Gary Taubes and David Ludwig have proposed a "carbohydrate-insulin hypothesis" in which carbohydrate is said to be uniquely fattening because it raises insulin levels and so causes fat to accumulate unduly.[8][28] The hypothesis appears to run counter to known human biology whereby there is no good evidence of any such association between the actions of insulin and fat accumulation and obesity.[6] The hypothesis predicted that low-carbohydrate dieting would offer a "metabolic advantage" of increased energy expenditure equivalent to 400-600 kcal/day, in accord with the promise of the Atkin's diet: a "high calorie way to stay thin forever".[8]
We’re going full on fats with breakfast, just like we did last week. This time we’ll double the amount of ketoproof coffee (or tea) we drink, meaning we double the amount of coconut oil, butter, and heavy cream. It should come to quite a lot of calories, and should definitely keep us full all the way to dinner. Remember to continue drinking water like a fiend to make sure you’re staying hydrated.
“As a physician, I see daily the tremendous impact that our pandemic of chronic nutritional disease is having on people and the health care system, despite our best conventional efforts over the last 40 years. I now focus my time and energy on counseling, supporting and guiding patients on the power of real food as medicine. Using the core principles of low-carb, high-fat eating and intermittent fasting, we see great improvements in diabetes, obesity, metabolic syndrome, polycystic ovary syndrome, NAFLD and many more chronic diseases. Diet Doctor is a great resource for my patients to help them in their journey.”
Katherine Arvesen, RDN, who in private practice in Plano, Texas, also notes that the study was not randomized and controlled, which is the gold standard for medical research to minimize error and bias. In this study, the patients were their own controls, meaning their results were compared with their own baseline (starting) measurements, not with the results of a control group.
There is also a common worry the ketogenic diet may cause ketoacidosis, which occurs when the acidity in the blood increases. Diabetic ketoacidosis is a life-threatening condition caused by very high blood sugars and a deficiency of insulin in insulin-dependent diabetics, a very different state from ketones produced by a fat-burning metabolism on a low-carb, high-fat diet.
Muscular strength was measured with a Jamar handgrip dynamometer (Lafayette Instruments, Lafayette, IN). After a brief demonstration and verbal instructions, the test was performed in the standing position with the wrist in the neutral position and the elbow flexed to 90 degrees. Patients were given verbal encouragement to squeeze as hard as possible and to apply maximal effort for at least 3 seconds. Two trials were allowed in the dominant limb, and the highest score was recorded as peak grip strength (kg). Considering possible influences on the muscular strength of changes in body composition, handgrip strength (HG) was divided by appendicular lean mass (ALM) determined by DXA (HG/ALM) and by appendicular soft lean mass (ASLM) determined by MF-BIA (HG/ASLM).
The contents displayed within this public group(s), such as text, graphics, and other material ("Content") are intended for educational purposes only. The Content is not intended to substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your healthcare provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in a public group(s).
“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.
Basically, carbohydrates are the primary source of energy production in body tissues. When the body is deprived of carbohydrates due to reducing intake to less than 50g per day, insulin secretion is significantly reduced and the body enters a catabolic state. Glycogen stores deplete, forcing the body to go through certain metabolic changes. Two metabolic processes come into action when there is low carbohydrate availability in body tissues: gluconeogenesis and ketogenesis.[4][5]
I recently applied for life insurance after following the ketogenic diet for about six months. I was initially quoted the lowest rate based on the fact that I have no health issues whatsoever. However, my cholesterol readings were very high so they came back and said that I had elevated total cholesterol readings of 378 which alarmed me. They have now doubled my life insurance rates because of it. Even though my total cholesterol was high everything else seems good according to this article. LDL – 272, HDL – 92, Triclycerides – 70. This all translates to an LDL/HDL ratio of slightly under 3:1 and a Triglyceride/HDL ratio of close to 1:1. I don’t know if I should be concerned that my total is well over the 300 that is sited in this article. Does anyone know?
HDL stands for high-density lipoprotein and its primary role in the body is actually to sweep up LDL particles and return them to the liver for recycling. This is because LDL is actually very susceptible to oxidation so it must be cleared from the blood efficiently. This means when LDL is exposed to chronic inflammation, it becomes damaged. The longer LDL remains in the blood stream and the higher your inflammation levels are, the higher your risk of heart disease.
My husband is doing this diet and I was making him bean soup with sausage for dinner, but I’m reading beans are a food to avoid, even being a high fiber food is that really true? Beans were always a good I was encouraged to eat in many other diets. I’m new to keto and don’t want to hinder his process. Would appreciate your advice because I’ve already got the beans cooking. Oh they are the dry beans, not canned.
In the early 1900s Frederick Madison Allen developed a highly restrictive short term regime which was described by Walter R. Steiner at the 1916 annual convention of the Connecticut State Medical Society as The Starvation Treatment of Diabetes Mellitus.[48]:176–177[49][50][51] People showing very high urine glucose levels were confined to bed and restricted to an unlimited supply of water, coffee, tea, and clear meat broth until their urine was "sugar free"; this took two to four days but sometimes up to eight.[48]:177 After the person's urine was sugar-free food was re-introduced; first only vegetables with less than 5g of carbohydrate per day, eventually adding fruits and grains to build up to 3g of carbohydrate per kilogram of body weight. Then eggs and meat were added, building up to 1g of protein/kg of body weight per day, then fat was added to the point where the person stopped losing weight or a maximum of 40 calories of fat per kilogram per day was reached. The process was halted if sugar appeared in the person's urine.[48]:177–178 This diet was often administered in a hospital in order to better ensure compliance and safety.[48]:179
^ Jump up to: a b c d e f g Seckold R, Fisher E, de Bock M, King BR, Smart CE (October 2018). "The ups and downs of low-carbohydrate diets in the management of Type 1 diabetes: a review of clinical outcomes". Diabet. Med. (Review). doi:10.1111/dme.13845. PMID 30362180. Low‐carbohydrate diets are of interest for improving glycaemic outcomes in the management of Type 1 diabetes. There is limited evidence to support their routine use in the management of Type 1 diabetes.
“I am determined to shatter the chiding “eat less, exercise more” obesity medicine paradigm. Obesity is not a personal failure, but a chronic health condition unfolding in our country and around the world. It is a result of the “carboholic” society we live in. Through a holistic approach, I arm patients with knowledge, tools, and skills to manage their weight as well as their overall health.”

Ketosis was determined by measuring ketone bodies, specifically β-hydroxy-butyrate (β-OHB), in capillary blood by using a portable meter (GlucoMen LX Sensor, A. Menarini Diagnostics, Neuss, Germany; sensitivity <0.2 mmol/L). As with anthropometric assessments, all the determinations of capillary ketonemia were made after an overnight fast of 8 to 10 h. These measurements were performed daily by each patient during the entire VLCK diet, and the corresponding values were reviewed on the machine memory by the research team to control adherence. Additionally, β-OHB levels were determined at each visit by the physician in charge of the patient. Glucose, insulin, HbA1C were performed using an automated chemistry analyzer (Dimension EXL with LM Integrated Chemistry System, Siemens Medical Solutions Inc. (Tarrytown, NY, USA). Thyroid-stimulating hormone (TSH), free thyroxine (FT4), and free triiodothyronine (FT3) were measured by chemiluminescence using ADVIA Centaur (Bayer Diagnostics, Tarrytown, NY, USA). The overnight fasting plasma levels of ghrelin and leptin were measured using commercially available ELISA kits (Millipore, Burlington, MA, USA). The fasting plasma levels of dopamine was tested by high pressure liquid chromatography (HPLC; Reference Laboratory, Barcelona, Spain).
Hi Stacey, I can’t give medical advice and definitely recommend following your doctor’s recommendations. You can ask him/her if low carb would be better suited for you. Also, you may want to double check with him/her if the kidney concern was related to high protein, because that is a common misconception about keto – it is not a high protein diet/lifestyle.

Weight loss often means feeling hungrier and fighting off more cravings, but that doesn’t always seem to be the case when you go keto. People report less hunger and a diminished desire to eat after adopting a ketogenic diet, according to an analysis of 26 studies. Experts don’t fully understand why, but it’s thought that very low carb diets could suppress the production of hunger hormones like ghrelin.

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)!


We’re going full on fats with breakfast, just like we did last week. This time we’ll double the amount of ketoproof coffee (or tea) we drink, meaning we double the amount of coconut oil, butter, and heavy cream. It should come to quite a lot of calories, and should definitely keep us full all the way to dinner. Remember to continue drinking water like a fiend to make sure you’re staying hydrated.
×