Detox diets are dietary plans that claim to have detoxifying effects. The general idea suggests that most food is contaminated by various ingredients deemed unnecessary for human life, such as flavor enhancers, food colorings, and artificial preservatives. Scientists, dietitians, and doctors, while generally judging ‘detox diets’ harmless (unless nutritional deficiency results), often dispute the value and need of ‘detox diets’ due to lack of supporting factual evidence or coherent rationale.Detox diets can involve consuming extremely limited foods (only water or juice, a form of fasting), or eliminating certain foods from the diet (such as fats). Proponents claim that this will cause the body to burn accumulated stored fats, releasing fat-stored “toxins” into the blood, which can then be eliminated through the blood, skin, urine, feces and breath. Proponents claim things like an altered body odor support the notion that detox diets are working; this claim has been criticized for misinterpreting the body undergoing ketosis. Though a brief fast of a single day is unlikely to cause harm, prolonged fasting can be fatal.