Whey is an important protein found in milk. Okay… So what is a protein, and how does it differ from the other three basic kinds of organic molecules in a person’s body? That is, every organism is composed of proteins, carbohydrates, lipids, and nucleic acids. These are the building blocks of which all life is composed. Every protein, in turn, is built of amino acids. Therefore, our bodies need amino acids to build proteins, and we build organs like hearts, and lungs, and muscle systems from proteins, and lipids, and nucleic acids. We all make many different kinds of proteins, however, so everyone needs amino acids in our diets in order to build the proteins our bodies manufacture. Proteins themselves are made from 20 kinds of amino acids; our bodies can synthesize 10 of these, and we must get the other 10 from foods we eat.
This is where whey protein becomes important, especially for bodybuilding, because the human body can metabolize the amino acids in whey faster than from almost all other kinds of proteins. In this case, when we say metabolize we mean break down the whey protein into its individual amino acids, and then use the amino acid building blocks to make other kinds of proteins needed for our own organs and organ systems.
As a final comment for this article, we emphasize that Whey protein is an excellent protein supplement in the diets of anyone who has a rigorous exercise routine. After a workout, the body must replace not only its energy stores, but also its basic components that have been consumed. Many of the body’s proteins need to be replaced on a daily basis. Whey protein is a wonderful source of those amino acids the body will use to rebuild and replace its proteins.