During menstruation is not fat, because the metabolism of women during menstruation increases, the calorie intake is basically consumed by the body, so there will be no surplus calories that may lead to obesity. There is also the fact that during menstruation, most women have a decreased appetite due to discomfort, which can lead to a lack of caloric intake. During menstruation, the pelvic reproductive system is relatively rich in blood supply, the blood supply of the gastrointestinal tract will be relatively reduced, which will lead to indigestion, or a decline in digestion and absorption, which will lead to insufficient nutrient intake, and will not lead to the body fat, it is recommended that the diet during menstruation is light and easy to digest, try to avoid eating too greasy, indigestible food, to avoid gastrointestinal discomfort, such as vomiting, diarrhea, bloating and other discomfort, Diarrhea, bloating and other discomforts.