L-glutamine might also help with post-exercise recovery, leading to less need for rest days and breaks between workouts. Glutamine decrease muscle soreness and improve recovery after intense exercise. GLUTAMINE is formulated for athletic people of all skill sets looking to get a better workout with rapid, fast-acting energy, power, and clear focus. Glutamine helps your body control catabolism by acting as a free nitrogen donor to help your muscles build the other amino acids they need to recover quickly. Glutamine also helps support increased cell volume, glycogen replenishment, and protein synthesis.