5. The Grapefruit Diet
This is centered on a bogus belief that grapefruit has some miracle “fat-burning” compound. Any weight loss experienced on this diet is caused by its low-calorie level.
6. Cleansing and “Detox” Diets
There is no scientific research to back up these diets. Your body is perfectly-equipped to rid itself of so-called toxins and other metabolic by-products because you have kidneys and a liver.