The X and Y Chromosomes Determine Your Sex. One chromosome pair - the sex chromosomes - is unique. You don't necessarily end up with a matching pair. Typically females have two X chromosomes and males have an X and a Y. Mothers always pass an X chromosome on to their children.
On the other hand, the absorption of nonheme iron, the major dietary pool, is greatly influenced by meal composition. Ascorbic acid is a powerful enhancer of nonheme iron absorption and can reverse the inhibiting effect of such substances as tea and calcium/phosphate.
Iron is an important mineral the body needs to produce red blood cells and keep you in good health. Vitamin C improves the absorption of iron from the stomach. Vitamin B12 is important for growth, cell production, and nerve function. Intrinsic factor is identical to a substance that is made naturally in the stomach.