Vitamin C increases the absorption of Iron in the intestines

Vitamin C is an antioxidant and thus converts iron into its ferrous form. Iron when present in the ferrous form is more easily absorbed through the intestinal membrane than the ferric form. Hence doctors often recommend citrus foods along with foods rich in iron to anemic patients. A lot of commercially available iron tablets in the market are coupled with vitamin C which is chemically known as Ascorbic acid.