Prolonged episodes of intense exercise not only drain your energy; they also deplete your body's nutritional reserves and exceed your ability to recover. Case in point: glutamine. Over-training can lower glutamine levels, which impairs performance. Glutamine R1 helps keep levels high, without high prices. 5 grams of micronized glutamine for less than 25 cents per serving. A great stress reliever. Instructions for use: Mix one (1) tablespoon with 6-8 oz. of your favorite cold beverage or protein powder and consume before, during or after training.