Glutamine Powder

Glutamine is technically classified as a non-essential amino acid since the body can produce it endogenously. Glutamine is also found in various protein-rich foods, such as dairy, meat, tofu, poultry, and fish. However, many would argue that glutamine is at least conditionally essential since there are specific times when the body could benefit from having more than it can synthesize on its own. Such as illness, injury, or extreme stress (i.e. intense exercise and dieting).