Special desire to eat sweets for the following reasons: 1, lack of vitamin B: lack of effective conversion of carbohydrates, fats, proteins in food into energy, resulting in the human body cells are always in a state of eagerness to replenish; 2, lack of minerals: lack of chromium, the body’s intake of sugar will not be metabolized normally, the lack of energy in the cells will also lead to a person’s appetite for sweets, supplement chromium later can improve this situation 3, emotional factors: people like to eat sweets when they are in a bad mood, because sweets can regulate emotions, relieve tension or depression, there are benefits to eating sweets in moderation, but excessive sweets will lead to weight gain, and too much sugar will stimulate insulin secretion, and then easy to induce diabetes, but also lead to toothache, loss of appetite and fat.