You can eat black beans in small amounts when you have your period. Black beans are rich in protein, as well as calcium, iron and other trace elements. Eating black beans can replenish the nutrients required by the body, and will also enhance menstrual resistance, prevent menstrual infections and diseases, and also prevent colds. Black beans are rich in crude fiber, and eating black beans during menstruation can prevent constipation, and it is best not to eat too much black beans. Black beans are more gas-producing food, the menstrual period gastrointestinal function is weak, too much to eat black beans can easily lead to bloating occurs. In the menstrual period need to pay attention to the meat and vegetables, can ensure that the body nutrition comprehensive, prevent micronutrient deficiency, pay attention to the period can not often stay up late, also can not eat spicy, stimulating food, best to drink more brown sugar water, can prevent dysmenorrhea.