Glutamine is one of twenty conditionally essential amino acids. It is one of the substances that make up our body, namely blood and muscle. Therefore, the amount of glutamine in our food directly depends on the growth of muscle mass. If you decide to spend time sport, you need to remember that in our daily diet is not always necessary for effective training, the content of glutamine. Therefore, for people who lead an active lifestyle, you need to take care about additional sources of this amino acid. As a rule, athletes buy glutamine in a special health food store.