Glutamine by NOW Foods and Supplementstogo.com has recently been the focus of much scientific interest. A growing body of evidence suggests that during certain stressful times, the body may require more glutamine than it can produce. Under these circumstances glutamine may be considered a "conditionally essential" amino acid. Glutamine is involved in maintaining a positive nitrogen balance (an anabolic state) and also aids rapidly growing cells (immune system lymphocytes and intestinal cell enterocytes). In addition, glutamine is one regulator of acid-base balance and a nitrogen transporter.*NOW® L-Glutamine Powder is 100% pure, free-form, non-essential, amino acid and is the highest grade available. The entire contents are equivalent to 2000 capsules of 500 mg each.DetailsServing Size: 1/4 Level Teaspoon (750 mg)Suggested Use: As a dietary supplement, take a 1/4 level tsp. in juice, preferably between meals, 1-3 times daily as needed.Free of: yeast, wheat, gluten, corn, soy, milk, sugar, salt, preservatives, colors or exicipients.Other Ingredients: NoneWarnings: Caution: Please discard the inedible freshness packet enclosed.Disclaimers: *This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.Vegetarian Formula.This product is sold by weight not volume.