D-Ribose is a carbohydrate molecule found in each cell of the body and is an essential component for the production of energy. The body uses D-Ribose to make adenosine triphosphate (ATP) the bodys energy source. Adequate levels of ATP are critical for optimal health and athletic performance. Research has shown supplemental D-Ribose significantly increases ATP production in both slow and fast twitch muscles leading to increased energy levels, power and athletic endurance. Numerous studies show supplemental D-Ribose reduces recovery time needed for heart and muscle tissue to replace ATP lost during strenuous exercise. NutraBulk uses premium grade D-Ribose for manufacturing our 850mg capsules. Dosage: Take six capsules (5100mg) daily with food or as recommended by your health care provider. Active Ingredients: Pharmaceutical-grade D-Ribose Other Ingredients: gelatin (capsule), magnesium stearate (used as flow agent), no other additives or fillers This product contains NO milk, egg, fish, peanuts,shellfish, soybeans, nuts, wheat, yeast, gluten, corn or rice products. Contains NO sugar, artificial sweeteners, flavors, colors or preservatives.