Why is it that so many doctors, nutritionists, and dietitians advocate that if we are going on a low-calorie diet in order to lose weight, we should supplement our diets with vitamin pills? Their theory is that if you eat a low-calorie diet, then there is a much lower probability that you will be able to consume all of the essential vitamins, minerals, and nutrients that the human body needs in order to maintain proper, healthy function, since your food choices will be limited. However, if you plan out your low-calorie diet properly, you may be able to successfully pull this off, if you eat the right combination of foods that contain all of the vitamins and nutrients you need.  Go to Flex Belt for more help and info.