There is no clinical evidence that eating food can delay menstruation. Progesterone-based medications can be prescribed to delay menstruation. Food alone can not delay menstruation, food does not play a therapeutic role. Women who delay menstruation need to take oral hormonal drugs under the guidance of a doctor, such as progesterone, medroxyprogesterone acetate, etc., which can play a role in delaying menstruation. But delayed menstruation drugs are hormonal drugs, if not necessary to use, it is not recommended to take drugs to change their own menstrual cycle, long-term use is likely to cause endocrine abnormalities and so on. Taking drugs to delay menstruation, need to be under the guidance of a doctor, not blindly self-medication, so as not to produce the risk of medication.