This document discusses three important minerals - zinc, selenium, and chromium. It provides information on their functions in the body and food sources where they are found. Zinc is involved in protein synthesis, cell division, and insulin production. Food sources of zinc include meat, seafood, eggs, nuts and grains. Selenium is a component of antioxidant enzymes and food sources include seafood, meat, grains and seeds. Chromium aids in digestion and is found in brewer's yeast, meats, potatoes, cheeses, whole grains, fruits and vegetables. Examples of specific foods high in each mineral are also provided, such as pumpkin seeds for zinc, chicken and tuna for selenium, and brewer's yeast for chromium.