HealthWise L-Glutamine is 100% pure pharmaceutical grade amino acid powder. Glutamine is the most abundant amino acid in the bloodstream. It is considered a "conditionally essential amino acid" because it can be manufactured in the body. HealthWise L-Glutamine is 100% pure pharmaceutical grade powder. Packed without fillers or flowing agents is vegan friendly, gluten free and dairy free. Ingredients 100% pure L-Glutamine Directions Serving Suggestions - Glutamine should be taken with cold or room temperature foods or liquids. It should not be added to hot beverages because heat destroys glutamine. Average serving would be 1/4 to 1/2 teaspoon added to food or liquid. Best taken in divided doses on an empty stomach as it is sensitive to stomach acids. Cautions This product is sold as a food only For specific conditions, please consult your healthcare professional.