Zinc is a mineral that's vital to your body . . . and not just to the thinking part of it! If you don't get enough of an essential vitamin or mineral, that's called a deficiency. In kids, zinc deficiency can harm the body's natural defenses against disease. Or it can slow growth.
So, how can you make sure you get enough zinc from your diet? Good sources are oysters, beef, pork, liver, dried beans and peas, whole grains, fortified cereals, nuts, milk, cocoa and poultry.