Protein

Functions of protein - Repairs tissue, build muscle mass, produces energy.

Examples- Fish because Fish is a food of excellent nutritional value, providing high quality protein and a wide variety of vitamins and minerals (www.fao.org/focus/.../fisheries/nutr.ht.) milk is a protein because milk contains valuable calcium, and many are fortified with vitamin D. Choose skim or low-fat dairy to keep bones and teeth strong and help prevent osteoporosis. (www.webmd.com/fitness-exercise/guide/good-protein-sources)

, cheese is a protein because cheese contains valuable calcium, and many are fortified with vitamin D. Choose skim or low-fat dairy to keep bones and teeth strong and help prevent osteoporosis. (www.webmd.com/fitness-exercise/guide/good-protein-sources ) , eggs are a protein because eggs contain about 6 grams of high quality protein, so high that it is used as the standard by which other foods are measured (www.bodybuilding.com/fun/eggs.htm ) , peanutbutter is a source of protein because peanut butter is high in sugar, it contains healthy fats and protein Peanut butter is a healthy nutrient source for bodybuilders.

(healthyeating.sfgate.com)