The maize grain is made up of three parts; the pericarp/bran, endosperm and the germ. The bran, which is the outer protective layer contains approximately 86 per cent of all the fibre in the grain, the B vitamins, minerals and antioxidants. The endosperm contains starch and proteins while the germ provides more than 70 per cent of all the minerals in the grain and holds most of the vitamins, healthy oils and some proteins.