Brown sugar water can be drunk during menstruation. 1. Brown sugar water contains certain iron elements and can be consumed in appropriate amounts during menstruation to replenish blood and prevent and relieve anemia caused by blood loss. 2. Brown sugar water also has the effect of invigorating blood and dispersing cold and promoting the discharge of stagnant blood, which is beneficial to the discharge of menstrual blood and can relieve menstrual pain. 3. The brown sugar water also has the effect of strengthening the spleen, warming the stomach, and relieving pain, and can relieve the gastrointestinal discomfort before and during menstruation.