5 best protein sources for building muscle

clipped from www.fatmanunleashed.com Whey – Whey protein is one the two major proteins found in the milk of humans and other mammals, such as cows. This means that nature selected it as one of the best proteins to help babies grow, and babies grow very fast. Casein – Casein protein is the other milk protein. So, nature also chose casein to aid in the growth of newborns. However, casein is digested and used slowly, making it a decent post workout protein Egg Whites – Egg yolks are good for the body in moderation, but egg whites are far better. Egg whites have all the amino acids you need and can be fairly inexpensive if you buy whole eggs and separate them yourself. Soy – Soy protein is the ideal choice for vegetarians. Soy is the only plant that has all of the amino acids your body needs. Skinless Chicken Breast – For those of you who just want meat, skinless chicken breast should be ideal for you. Skinless chicken breasts are extremely lean especially if you remove all visible fat.