Gat l-glutamine is pure amino acid and potent enough to be used by some of the world’s greatest physique and performance athletes. Each serving supplies 5. 0G of high-quality l-glutamine. Because it is unflavoured, this product can easily be added to protein shakes, pre- or post-workout drinks, or your favorite beverage. Each serving of this product supplies 5, 000 mg (5. 0 G) of pharmaceutical-quality l-glutamine.