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Dieting, especially extreme food-intake reduction and rapid weight loss, can have the following side effects and consequences: Subsequent weight re-gain Lowered metabolism, causing future attempts at weight loss to become more difficult, and making weight gain easier Muscle atrophy Risk of developing eating disorders, especially anorexia nervosa or bulimia nervosa, even if initial intentions of dieting were health-wise Prolonged hunger Depression Reduced sex drive Fatigue Irritability Fainting Sinus problems (especially post-nasal drip) Rashes Acidosis Bloodshot eyes Gallbladder disease Seizures Malnutrition, possibly leading to death Constipation, due to lack of food-intake Dehydration, due to lack of fluid-intake While there are studies that showed the health and medical benefits of weight loss, a study in 2005 of around 3000 Finns over an 18-year period showed that weight loss from dieting can result in increased mortality, while those who maintained their weight fared the best.[3][7][30] Similar conclusion is drawn by other studies,[3][31] and although other studies suggest that intentional weight loss has a small benefit for individuals classified as unhealthy, it is associated with slightly increased mortality for healthy individuals and the slightly overweight but not obese.[6] This may reflect the loss of subcutaneous fat and beneficial mass from organs and muscle in addition to visceral fat when there is a sudden and dramatic weight loss.[7] |
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