A term used indiscriminately, but generally referring to proteins. Proteins are body-building food.foods that contain proteins help us to grow,build up our bones and muscles and also to grow strong and healthy.
In order to build lean muscle, you need high protein foods lean in fats, like fish, chicken breast, 90% fat free turkey patties. Also beans (Black, red, chick peas) contain proteins in a lesser degree. Don't forget dairy group : Yogurt and
skim milk cheese.