Eating to gain weight is not directly related to the menstrual period. Any time, eat as long as not in moderation, or exercise less, will be fat. During menstruation, the body’s resistance and immunity will be relatively poor, during this period should not be excessive dieting, to avoid not consuming enough food, resulting in hypoglycemia or other discomforts. If you are worried that eating during menstruation will make you fat, you can combine your body’s condition with regular dietary intake, and then do some appropriate physical exercise, which can avoid calories being converted into fat and accumulating in the body for a long time. But do not do strenuous exercise. When eating during menstruation, try to eat less spicy and stimulating foods, such as chili peppers, hot pots and scallions, to avoid discomfort. You should also pay attention to local hygiene and change sanitary napkins regularly.