Vitamin C can promote the absorption of non-heme iron in the intestines, promote the transfer of iron from plasma transferrin to ferritin for storage in the body, and play an important role in the release of iron from reticuloendothelial cells. Vitamin C is involved in the reduction of Fe3+ to Fe2+, so that ferrous iron complexing enzyme is in an active state and gives full play to its role; it is involved in the reduction of folic acid to tetrahydrofolate in the body and prevents methyl tetrahydrofolate from becoming an irreversible oxidation product (formylfolate), so vitamin C is an important adjuvant in the treatment of anemia. However, large doses of vitamin C may also bring some discomfort, so if you experience discomfort, please treat under the guidance of a physician.