D-Ribose is a carbohydrate molecule present in all living organisms, which facilitates the production of ATP. The supply of D-ribose to cells rapidly restores ATP levels. By helping to quickly replenish depleted energy, it can be especially beneficial for the health of the circulatory system. D-Ribose tablets and D-Ribose powder can help accelerate energy recovery, increase energy reserves, and maintain healthy energy levels in circulatory and muscle tissue. It is recommended to take a daily serving (5 tablets) with food to support circulatory health and energy levels in working muscles, or as recommended by a healthcare professional. For an alternate dosage, take one (1) tablet daily for general health. If you are taking glucose-lowering medications, please consult your doctor first. Keep out of the reach of children. Do not exceed the recommended dose. Do not buy if the outer seal is broken or damaged. When using nutritional supplements, please consult your doctor if you are undergoing treatment for a medical condition or if you are pregnant or lactating. A food supplement should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Keep tightly closed in a cool, dry place.