Glutamine powder is the form of an amino acid with chemical name L-Glutamine. This product does not contain flavors and does not contain sweetener or preservatives. A scale of glutamine contains 5 grams L-Glutamine. L-Glutamine is an amino acid that is naturally found in the body and plays a role in various biological functions such as protein synthesis, immune function and intestinal health. Glutamine powder can be used by athletes and in some health conditions. For more information about the use of this product, it is important to follow the instructions on the packaging.