The B Vitamins
Three B vitamins—folate, B6 (pyridoxine) and B12—can offer protection to your heart by functioning as powerful antioxidants. Their protective effect is thought to come, specifically, by eliminating homocysteine from the blood. Homocysteine is an amino acid or protein that your body produces when it digests protein from animal foods.
Homocysteine has been postulated by a Harvard physician, Dr. McCully, 30 years ago, to scar coronary vessels and begin the process of building plaques in the coronary arteries. A study out of Harvard in 1998 showed that women who consumed adequate amounts of folate and B6 had half the rates of heart attacks as women who did not.
If you are eating plenty of fruits and vegetables you should not have any problems keeping your levels of folate and B6 at a protective level. B12 is almost ubiquitously found only in animal products. You healthiest sources include fish, and supplemented vegetable foods, such as soy milk, nutritional yeast and cereals.
B Vitamins, Excerpt from the book: Everything Good For The Heart: The A to Z Guide, Aoukar PS and Karamanoukian HL. Magalhaes Scientific Press