Aids in the Conversion of Food into Energy Energy Health Vitamin Supplement Guaranteed Quality Laboratory Tested Nearly 50 Years of Trusted Quality At Nature's Bounty, we are committed to your health. For nearly 50 years we have been making trusted products, backed by science, and made with only the purest ingredients...guaranteed. So you ca get the most out of life every day. Vitamin B-12 supports energy by converting food into energy.