D-ribose, a monosaccharide sugar found in all living cells, plays a critical role in cellular metabolic pathways that generate energy. D-ribose supports normal heart and skeletal muscle function. As a fundamental constituent of adenosine triphosphate (ATP), D-ribose is essential for normal energy production. It is also a component of the nucleotides DNA and RNA. Found in small amounts in the diet, the body must synthesize D-ribose from glucose. Cardiac muscle is especially vulnerable to conditions that deplete ATP and nucleotide pools. It may take days for ATP levels to be restored after strenuous exercise as both cardiac and skeletal muscle have low levels of enzymes needed to convert D-ribose to D-ribose-5-phosphate, the activated form of D-ribose that plays a critical role in regenerating cellular ATP. D-ribose administration has been shown to significantly support heart ATP levels, especially in the setting of diminished exercise capacity. Pure D-ribose is supplied in powder form for convenient supplementation of multi-gram amounts found to be beneficial. D-Ribose powder has a natural, slightly sweet taste and mixes readily in water or juice.

Please note that Prothera has rebranded under the Klaire Labs label. During this transition period, the product received may be labelled as Prothera or Klaire Labs. There have been no changes to product names or ingredients. Please search Klaire Labs for a complete list of products.

These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose, treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.