Bananas can be eaten during menstruation for the following reasons: First, women will lose nutrients due to blood loss during menstruation, such as, fat, protein, vitamins and so on. Women should increase the intake of nutrients during menstruation to replenish the nutrients lost due to blood loss. Bananas are rich in plant polysaccharides, vitamins, plant proteins, etc., and the nutrients are easily absorbed, so women can eat bananas appropriately during menstruation; secondly, bananas have the function of promoting gastrointestinal tract peristalsis, metabolism and digestion. Some women may have large fluctuations in emotions and endocrine during menstruation, resulting in indigestion, anorexia and other gastrointestinal reactions. Women properly eat bananas have the effect of promoting digestion and absorption, but the amount eaten should not be too large.