Failure to conduct a slimming diet is often associated with too drastic low-calorie diets and destabilization of the endocrine system, which regulates appetite. The most effective means in this group are natural plant extracts, oils, hydroxycitric acid, chromium and dietary fiber. They deceive the brain by sending it a signal of satiety ,even with minimal portions of food. In addition, they fill the stomach, regulate blood sugar and carbohydrate metabolism. The final outcome of these processes is less caloric intake and accelerate the process of weight loss while having mental satisfaction.