Vitamin D has been nicknamed the “sunshine” vitamin because when the skin comes into contact with UV rays from the sun the skin can manufacture it. There are two forms, D2 and D3. Vitamin D2 can be found mainly in plant sources and vitamin D3 can be found in animal food.
Some of the functions of vitamin D are: regulates absorption and use of calcium and phosphorus, strengthens teeth and bones, helps prevent various diseases, and enhances the immune system.
Foods rich in vitamin D include: oily fish and eggs are the best. There can be some in fortified breakfast cereal and homogenized milk.