Sundown Naturals B12 helps support energy, by helping your body convert food into energy.* One tablet a day supplies important support for energy metabolism and nervous system health, and is good for your overall well-being.* B12 works with fellow B vitamins Folic Acid and B6 to help support a healthy heart.*Sundown Naturals B12 provides you with a high potency source of this essential B Vitamin, which is also known as Cyanocobalamin. B12 supports heart and circulatory health, contributes to a healthy nervous system, and plays a role in energy metabolism. B12 also aids in the normal development and the regeneration of red blood cells. This vegetarian friendly formula allows you to reap all the benefits B12 is known for in an easy, one tablet a day dose.