The function of vitamin C effervescent tablets: 1. After supplementing the body with vitamin C can enhance the immune function, because vitamin C can promote the synthesis of immunoglobulin, increase the number and vitality of T-lymphocytes, which can enhance the body’s resistance to diseases. 2. By providing vitamin C can block the formation of nitrosamines in the stomach, which in turn can reduce the incidence of esophageal cancer, stomach cancer and other cancers. 3. Vitamin C, has a good role in promoting the absorption of iron, because vitamin C can reduce the trivalent iron that is not easily absorbed to the divalent iron that is easily absorbed, which will be very powerful in preventing and correcting iron deficiency anemia.