Natural Factors L-Glutamine - An athletic support supplement used to restore the body’s glutamine levels after intense workouts and physical stress. Supplementation with L-glutamine enhances muscle tissue repair after heavy physical exertion, helping to accelerate post-exercise recovery and improve energy levels. L-glutamine also supports immunity and digestive system health, and has been shown to strengthen the intestinal barrier to protect it against exercise-induced intestinal permeability. This naturally fermented source of L-glutamine is vegan-friendly.