New Roots Herbal D-Ribose is the simple five-carbon sugar that forms the backbone of ribonucleic acid and provides the currency for energy production at the cellular level. d-Ribose is the rate-limiting substance that enables our bodies to respond to increased energy demands. d-Ribose speeds up recovery time following periods of stress and exertion. ATP production within the mitochondria benefits from d-ribose supplementation in two ways: ATP production from scratch can be increased up to 400%, and the more efficient recycling or salvaging method can increase it up to 700%. d-Ribose in supplemental form is absorbed at a rate of up to 95% to support increased metabolic demands, reduce exercise recovery time, and support heart function in times of need. d-Ribose is an essential component of base metabolic pathways required to produce energy at the cellular level. d-Ribose provides fuel for muscle fibre, including the myocardium which can't afford to fail!