Klean Endurance is ideal for providing athletic support as the chewable tablets contain pure, all natural D-Ribose that supports the natural way the body produces adenosine triphosphate (ATP). It has been reported in athletes it can take up to three days to restore ATP levels back to baseline levels after intense physical exercise. Ribose supplementation has shown to increase the rate of ATP synthesis following intense physical exercise, decreasing overall recovery time as it provides muscles the energy needed to restore themselves to a normal state. Klean Endurance offers your patients' a clinically proven way to help restore energy during exercise.