During periods of intense exercise, your body burns through energy sources like glutamine and glycogen, along with proteins and amino acids. This is sweet for a while, but eventually the byproduct of this process ammonia starts building up and interfering with efficient muscle function. Hammer Nutrition's Anti Fatigue Caps combine the ammonia gobbling compounds potassiummagnesium aspartate or aspartic acid, L Citroline, and ornithine alpha ketoglutarate OKG to hunt down and gobble up ammonia, so your energy output won't fade as quickly as it otherwise might. That's not all Anti Fatigue Caps do, though. They also help absorb other toxins from the bloodstream and liver, aid the function of RNA and DNA, stimulate the immune system, and prevent muscle breakdown. Just pop a few during or after a race to stay strong and recover faster, and be ready to feel silly for never doing it before.