Black soybean milk can be drunk during menstruation for the following reasons: First, women will lose nutrients during menstruation due to blood loss. Common vitamin A, vitamin B, vitamin E, as well as protein and amino acids, are important for women, especially during menstruation, and the lost nutrients will have a negative impact on women’s health. Should increase the intake of nutrients, black soybean milk is rich in vitamins as well as high-quality vegetable protein, but also contains rare amino acids, sugar, women can drink black soybean milk during menstruation. Second, some women experience indigestion during menstruation, such as nausea, vomiting, anorexia. Black soybean milk has the effect of promoting digestion and gastrointestinal tract movement. Women can drink black soybean milk appropriately during menstruation to promote digestion and gastrointestinal tract movement.