Vitamin C is colorless crystal, can be dissolved in water and alcohol, and can be easily destroyed. Its main functions: it can enhance the body immunity and protect capillaries, prevent scurvy and promote wound healing. Vitamin C can increase the use of iron, its chemical and biological process is that it reduces ferric iron in the diet to ferrous iron to promote the absorption of iron and to store iron in ferritin in the liver and bones. Practice shows that the supplementation of iron as well as adding VC can increase the iron absorption rate by 22%, it basically reaches the normal absorption rate of hemoglobin.