Vitamin B-12 is essential in maintaining healthy nervous system function and it is associated with the prevention of pernicious anemia.
Scientific Evidence: Vitamin B-12 may help in preventing cardiovascular disease by helping reduce the body's level of the amino acid homocysteine. High homocysteine levels are associated with the build-up of plaque on the arterial walls which in turn can cause angina, heart attach and stroke.
Adverse Reactions/Side Effects: There is no known toxicity for Vitamin B-12.