Types of Protein Powder

Oct 27, 2010 | By Janelle Vaesa

Protein is essential for building and repairing muscle tissue. People of all ages and activity levels need a certain amount of protein to function daily. Athletes need slightly more protein to help repair muscle tissue from the increased activity they participate in. Protein powders can be added to food or drinks to increase the amount of protein in your diet.

Whey Protein Powder

Cow's milk has two types of protein, whey and casein proteins. According to the Whey Protein Institute, cow's milk is made up of 80 percent casein protein and 20 percent whey protein. Whey protein contains all the essential amino acids needed to build and repair muscle tissue and to provide energy. Whey protein is easily digested and quickly absorbed by the body, which is important to athletes after a workout. Whey protein does not change the taste of the food or drink it is added to.

Casein Protein Powder

Casein protein is found in cow's milk and takes longer to digest and to be absorbed into the muscle tissues. Casein protein also helps prevent the breakdown of muscle tissue. Since casein protein takes longer to digest, shakes made with casein can be used as a meal replacement or consumed before going to bed. Muscle tissue repairs occur during sleep, according to the book "Nutrition Concepts and Controversies." This makes casein protein an ideal choice for athletes at the end of the day.

Soy Protein Powder

Soy protein powder comes from soybeans. Soybeans contain essential amino acids and phytochemicals. Vegetarians often consume soy products to provide protein. Soy products can include tofu, soy milk and powders. Soy protein powder can be used in food and drink and is easily digested. Soy protein powders do not dissolve in liquids as easily and can have a bean taste, reports Soya. Soy protein powders consist of thickeners, added flavors, vitamins, minerals and sugars.