Minerals/Electrolytes: Adopting a ketogenic diet will change the way your body uses (and loses) certain minerals. Not replacing these minerals can lead to symptoms of the “keto flu” such as lightheadedness, headaches, constipation, muscle cramps and fatigue. Refer to this article for tips on how to replace common minerals such as sodium, potassium, magnesium and calcium.
Constipation is a common side effect of low-carb eating plans, including the ketogenic diet. Severely curbing your carb intake means saying goodbye to high-fiber foods like whole grains, beans, and a large proportion of fruits and vegetables, says Ginger Hultin, MS, RDN, Seattle-based nutritionist and spokesperson for the Academy of Nutrition and Dietetics.
Supporting these results, Naude et al. (15) found a similar outcome in obese adults with and without type 2 diabetes. This meta-analysis of 19 randomized, controlled trials compared dietary interventions using standard CHO recommendation (i.e., 45 – 65%), low-carbohydrate/high protein (LCHP) and low-carbohydrate/high fat (this group, although not specifically stated, met the criteria for KD). Results demonstrated significant weight loss among all groups in the short-term (3 – 6 months) and long-term (1 – 2 years), with no significant difference among dietary interventions. The authors concluded that weight loss interventions using CHO restriction are equally effective as isocaloric diets of standard CHO recommendation.
“I recommend low-carb nutrition for the majority of my patients and clients. And I send them all to Diet Doctor for the best recipes, instructional videos and written guides for everything someone needs to get started and to thrive on a low-carb lifestyle. Diet Doctor doesn’t have anything to sell you; its only goal is to provide you with the highest quality, evidence-based information to help you improve your life. That is hard to find in today’s ad-driven and product-driven internet. In fact, I loved Diet Doctor so much, I decide to work for them hosting their podcast!”
Ketosis means that your body is in a state where it doesn't have enough glucose available to use as energy, so it switches into a state where molecules called ketones are generated during fat metabolism. Ketones can be used for energy. A special property of ketones is that they can be used instead of glucose for most of the energy needed in the brain, where fatty acids can't be used. Also, some tissues of the body prefer using ketones, in that they will use them when available (for example, the heart muscle will use one ketone in particular for fuel when possible).
The nutritional intervention was based on a commercial weight-loss program (PNK method®), as was described elsewhere . Briefly, the intervention included an evaluation by the specialist physician conducting the study, an assessment by an expert dietician, and exercise recommendations. This method is based on high-biological-value protein preparations obtained from cow’s milk, soy, avian eggs, green peas, and cereals. Each protein preparation contained 15 g protein, 4 g carbohydrates, 3 g fat, and 50 mg docohexaenoic acid and provided 90–100 kcal.
Option 3: "Make your own keto 'lunchable' with cubes of grilled chicken, a slice of nitrate-free ham, cheese cubes, pickle slices, a hard-boiled egg, a few raw grape tomatoes, raw veggies like cauliflower or broccoli, a few almonds or walnuts, guacamole, and ranch dressing," says Stefanski. (Looking for something meat-free? Here are 29 Vegetarian Keto Recipes for Plant-Based Eaters.)
Everyone — not just those on a keto diet — should stay away from consuming added trans fats. While these are naturally found in some meat and milk (though you’re probably avoiding milk on keto because of its higher carb count), according to the USDA, they’re often added to processed foods. “If you’re eating a lot of packaged products, you’re probably getting more trans fats than you think you are,” says Keatley.
The ketogenic diet has been shown to produce beneficial metabolic changes in the short-term. Along with weight loss, health parameters associated with carrying excess weight have improved, such as insulin resistance, high blood pressure, and elevated cholesterol and triglycerides. [2,7] There is also growing interest in the use of low-carbohydrate diets, including the ketogenic diet, for type 2 diabetes. Several theories exist as to why the ketogenic diet promotes weight loss, though they have not been consistently shown in research: [2,8,9]
PATIENTS AND METHODS: Randomized cross-over trial with placebo. The study had no. 2 dietary treatment (DT), conducted in two arms: (1) VLCKD1 in which 50% of protein intake is replaced with synthetic amino acids; (2) VLCKD2 with placebo. The VLCKDs (<800 kcal day-1) were different in term of protein content and quality each arm lasted three weeks (wks). Between the two arms a 3-wks washout period was performed to avoid additive effects on DT to follow. At the baseline, at start and end of each arm, all the subjects were evaluated for their health and nutritional status, by anthropometric analysis, body composition (Dual X-ray Absorptiometry (DXA), Bioimpedentiometry, biochemical evaluation, and Peroxisome Proliferator-Activated Receptor γ (PPAR) γ expression by transcriptomic analysis.
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.
“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.
“I follow and recommend a low-carb or keto lifestyle, with and without intermittent fasting, to all of my patients whether or not they have lifestyle-related chronic conditions. I do this because of the health benefits to anyone who follows them, but also because of the science behind them and the impressive clinical results I have seen in my patients. I have recommended the Diet Doctor website for the past 5-6 years as a first-stop to find completely trustworthy information, delicious recipes, great visuals and excellent videos.”