There is no question about it: A good diet contributes to disease prevention. One way to ensure that you are getting your Daily Values for B-Vitamins is to take dietary supplements. Vitamin B-6 plays a role in protein and energy metabolism and assists in the metabolism of homocysteine, an amino acid. Vitamin B-6 is also part of a triad of vitamins along with Folic Acid and Vitamin B-12 that support heart health. Adults can take one tablet daily.