It is better to drink brown sugar during menstruation because it is coarse refined cane sugar, and the nutrients are well preserved, containing not only cane sugar, but also calcium, iron and other trace elements, which are very helpful to the body’s hematopoietic function. The brown sugar is warm and has the effect of activating blood circulation and removing blood stasis. Drinking brown sugar water in moderation during menstruation can effectively relieve the low menstrual flow and menstrual pain. Especially for women with a cold body, drinking brown sugar water in moderation during menstruation can also increase the body’s heat and play a warming effect. If the usual menstrual flow is relatively large, it is not recommended to drink brown sugar water during the menstrual period to avoid aggravating the menstrual flow. It is not recommended to drink too much brown sugar water during menstruation to avoid drinking too much and causing gastrointestinal discomfort, nausea and vomiting in severe cases.