A mineral is neither plant nor animal. Minerals can be pure elements like calcium or a simple combination of elements like salt. Organisms need minerals to help them live and grow. To get them, we need to eat plants and animals that have absorbed minerals through the earth and water.
- Zinc: is a mineral that is good for your eyes and your whole body. One thing zinc does in our bodies is to bring Vitamin A stored in the liver to our retinas. People with severe vitamin A deficiencies can have trouble seeing at night and can go blind altogether - so zinc does an important job! Good sources of zinc include beef, pork, lamb, oysters, eggs, shellfish, milk, peanuts, whole grains and wheat germ.