During strenuous excercize?? large amounts of ATP can be depleted in heart and skeletal muscle cells</br>D-Ribose is a simple sugar that is used by the body to synthesize nucleotides?? Atp?? nucleic acids?? and glycogen</br>Vegetarian friendly</br></br>Product Description</br></br>During strenuous excercize?? large amounts of ATP can be depleted in heart and skeletal muscle cells;D-Ribose is a simple sugar that is used by the body to synthesize nucleotides?? Atp?? nucleic acids?? and glycogen;Vegetarian friendly</br><br/>http://www.amazon.com/gp/product/B0032HFH5G