If the calorie intake is high enough to exceed the metabolic requirements, women will gain weight if they eat during their period. The term “Auntie’s period” generally refers to a woman’s physiological period. During this period, the lining of the uterus peels off on its own due to the loss of high levels of estrogen and progesterone, and hormonal “withdrawal bleeding” occurs. Due to the continuous flow of menstrual blood and the body’s energy consumption, some women will voluntarily increase their food intake. At this time, if the calories generated by the intake of food significantly more than the body’s actual metabolism of the calories required, the remaining calories will be stored in the body in the form of fat, the human body will become fat. Therefore, it is possible to gain weight by consuming too much food during menstruation. It is recommended that women pay attention to keep warm during menstruation, eat reasonably and do not overeat.