ON L‑Glutamine Powder is a premium, unflavored amino acid supplement designed to support muscle recovery, immune health, and gut integrity. Each serving provides 5 g of pure L‑glutamine—the most abundant amino acid in skeletal muscle—helping replenish levels depleted during intense training and supporting protein synthesis. Instantized for smooth mixing, it blends seamlessly into drinks and is Informed‑Choice certified for banned substances.
Glutamine is the most abundant amino acid in the body, comprising more than 60% of the free amino acid pool in skeletal muscle and greater than 20% of total circulating amino acids. During prolonged, intense exercise, muscle glutamine levels may be depleted, and this can limit protein synthesis.¹ Glutamine Powder is an easy way to supplement your diet. This instantized powder mixes easily and is unflavored for ‘stacking’ with protein shakes.