Seven days after the menstrual period to lose weight is the best, because the body’s metabolism increases within a week after the menstrual period is clean, and the water accumulated in the body during the menstrual period will be discharged from the body, and the digestive function is better during this period, the spirit is pleasant, and it is best to cooperate with a proper diet. It is recommended to exercise properly, you can lose weight. During menstruation due to hormonal changes in the body will cause water and sodium retention leading to weight gain, during menstruation can not be excessive dieting. If dieting during menstruation will cause malnutrition and cause a decrease in menstrual flow, menstruation can not be strenuous exercise, etc. will affect weight loss. After menstruation is clean, you can control your diet appropriately, it is best not to eat high-fat, high-calorie food, it is recommended to eat more vegetables and fruits. Running, dancing, swimming and other exercises can have a weight loss effect. Regular medical checkups are needed during the weight loss period, and excessive dieting is not allowed so as not to affect your health.