A low-calorie diet ( VLCD ) is a diet with very high or very low daily food consumption. This is defined as a 800 kilocalorie diet (3,300 kJ) per day or less. VLCDs are formulated, complete nutrition, liquid food contains 800 kilocalories or less per day. VLCD also contains recommended daily requirements for vitamins, minerals, trace elements, fatty acids and proteins. Carbohydrates may be completely absent, or replaced for some protein; this option has important metabolic effects. VLCD products are usually powders mixed with water or other low-energy food liquids. VLCD is prescribed on a case-by-case basis for rapid weight loss (about 1.5 to 2.5 kilograms or 3 to 5 pounds per week) in people with a Body Mass Index of 30 and above. Health care providers may recommend dieting to patients with BMIs between 27 and 30 if a medical complication of patients due to excess weight poses a serious health risk. This results in a 4% greater weight loss in the short term compared to controls.
Video Very-low-calorie diet
Indication
VLCD is usually performed by obese patients who want to lose a lot of weight quickly, because the risk to obesity-related health is considered far greater than the risk of the diet itself, provided it is done with medical supervision.
Maps Very-low-calorie diet
Health effects
About one in four people follow VLCD for several months, gallstones develop. However, these gallstones may be small enough not to cause discomfort, and often disappear when a normal diet continues. Gallstone formations are facilitated by thicker bile liquids and reduced flow as a result of VLCD. Another potential side effect is constipation (depending on the fiber content of the diet). VLCD that is not monitored with inadequate macronutrient and mineral intakes has the potential to cause sudden death through ventricular tachycardia.
See also
- Obesity
- Weight
- Calorie restrictions
- Negative calorie foods
- Ketosis
References
External links
- Diet & amp; VLCD - study summary
Source of the article : Wikipedia
0 Comments