I heard from many people that low menstrual flow is related to liver and kidney problems, as well as deficiency of Qi and blood. You need to replenish Qi and blood, and you also need to eat kidney-tonifying foods, such as jujubes and red beans. , wolfberry, longan, black beans, black rice, black sesame, etc. You can also take some medicinal and edible donkey-hide gelatin powder, donkey-hide gelatin pills, etc. It has a very good effect on low menstrual flow.