a crystalline amino acid occurring in proteins; important in protein metabolism
"After her intense workout, she added extra glutamine to her shake to support muscle recovery and protein synthesis."
A nonessential amino acid C₅H₁₀N₂O₃ found in most animal and plant proteins.
"The doctor recommended increasing my intake of glutamine, a nonessential amino acid naturally found in most animal and plant proteins, to help repair the muscle damage from surgery."