Glutamine is a non-essential amino acid required by the human body, which is mainly found in muscle structure and can be converted from glucose. Foods rich in glutamine include lean meats, legumes and seafood. Glutamine-rich foods include lean meats because it is mainly found in mammalian muscles, such as: lean pork, lean beef, etc. It belongs to the class of amino acids that code for protein. It belongs to the class of amino acids that code for proteins. Legumes such as soybeans and soybeans, eggs such as eggs and duck eggs, and seafood such as crabs, fish and shrimp also contain glutamine. In a state of negative nitrogen balance, such as disease and intense athletic training, the body has an increased need for glutamine, which needs to be replenished by supplementing with high-quality protein.