* Glutamine Supplement The Bigger Picture of Glutamine Glutamine is the most abundant amino acid in the body and plays an important role in muscle protein development. During prolonged periods of intense exercise, glutamine levels may be depleted faster than exercise, glutamine levels may be depleted faster than the body can replenish them, which limits protein synthesis and can even encourage muscle breakdown. Our Glutamine Powder is a simple way to supplement your diet with this key amino acid. Just one teaspoon of Glutamine Powder provides more glutamine than 5 jumbo eggs, 4 oz of lean beef, 3/4 cup of soybeans, or a chicken breast. Better yet, our Glutamine Powder is unflavored and it mixes easily, so that is can be added right into your protein, meal-replacement, and weight gainer shakes.