Applied Nutrition Glutamine 4K capsules are designed for rapid disintegration and maximum absorption. Glutamine is the most abundant amino acid in the body, making up over 60% of the free amino acid pool in skeletal muscle and more than 20% of total circulating amino acids. Applied Nutrition's Glutamine Veggie Caps are made from the highest quality pharmaceutical-grade glutamine available. Each serving provides 4000mg (4g) of pure L-Glutamine. Suggested Use: Take 1 serving daily. Glutamine is best consumed post workout to help restore depleted glutamine levels.