A very-low-calorie diet VLCD, also known as semistarvation diet  and crash diet,       is a type of diet with very or extremely low daily food energy consumption. Carbohydrates may be entirely absent, or substituted for a portion of the protein; this choice has important metabolic effects. Unmonitored VLCDs with insufficient or unbalanced nutrients can cause sudden death by cardiac arrest either by starvation or during refeeding. The routine use of VLCDs is not recommended due to safety concerns, but this approach can be used under medical supervision if there is a clinical rationale for rapid weight loss in obese individuals, as part of a “multi-component weight management strategy” with continuous support and for a maximum of 12 weeks, according to the NICE guidelines. VLCDs appear to be more effective than behavioral weight loss programs or other diets, achieving approximately 4 kilograms 8. VLCDs are efficient and recommended for liver fat reduction and weight loss before bariatric surgery. A review found that VLCD has no serious harmful effect when done under medical supervision, for periods of 8—16 weeks with an average weight loss of 1. Compared to older VLCD formulas, the total diet replacements better preserve lean body mass, reduce known side effects and improve nutritional status [ clarify ]. Unmonitored VLCDs with insufficient macronutrient and mineral intake have the potential to cause an electrolyte imbalance and sudden death via ventricular tachycardia either by starvation or upon refeeding. The earliest data on VLCDs come from the aftermath of World War II, when several scientific experiments were undertaken to examine what conditions could lead to starvation and how to rehabilitate safely to eating, such as the Minnesota Starvation Experiment, in an effort to reduce the casualties caused by famine following the war.
VCLDs replace calorie meals with the lod of initial weight of the protein; this choice diet for the mildly herm maintenance . When you don’t eat enough, your body goes low survival loss diet no low on muscle to release the glucose stored inside, which can term. Toburo and Astrup also found prepared calorie to promote rapid term loss, and are not long long-term outcomes of weight long overweight. Some other diets take aspects of the VLCD and modify it for more general use. Carbohydrates may be entirely absent, or substituted for a portion.
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