B Vitamins

A group of B vitamins -- folic acid, vitamin B12, and vitamin B6 -- may have a role in heart health. In a complex series of reactions, these vitamins are responsible for regulating the blood levels of an amino acid called homocysteine. An elevated blood level of homocysteine is one of the risk factors for heart disease.

Evidence suggests, although it's not proven, that homocysteine oxidizes LDL, thereby promoting atherosclerosis. Unfortunately, two large clinical trials of men and women with heart disease have not shown any benefit of folate, B12, and B6 supplements in lowering homocysteine, indicating that homocysteine may be a marker of coronary heart disease, not a target of treatment.  

Green leafy vegetables, such as spinach and kale, as well as brussell sprouts, asparagus, beans, orange juice, and fortified cereals are good sources of folate. Since 1998, the United States government has required that folic acid be added to refined grain products, such as white bread, pasta, and rice. However, these refined grains should not be substituted for whole grains in the diet.

Vitamin B12 can be found in lean red meat, fish, shellfish, and fortified cereals. Chicken, fish, whole-wheat bread, beans, and fortified cereals contain vitamin B6.

Niacin is another B vitamin. In large doses, nicotinic acid, a form of niacin, lowers total cholesterol, LDL cholesterol, and triglyceride levels and raises HDL levels.

Evidence is also inconclusive on the role that carotenoids, which provide Vitamin A, play in cholesterol. Learn about carotenoids on the next page.

For more information on cholesterol, see:
  • Foods That Lower Cholesterol: The first and best way to attack a cholesterol problem is through your eating habits. Find out what to eat for a healthy heart.
  • Foods That Claim to Lower Cholesterol: Many foods and supplements claim that they can help lower cholesterol. But do they really work? Find the answers here.
  • Low Cholesterol Diet: Many cholesterol-conscious diet plans focus on reducing saturated fat. Learn how to cut it out of your diet.
  • How Cholesterol Works: Cholesterol is essential to the body. Find out why we need it and how much is too much.

This information is solely for informational purposes. IT IS NOT INTENDED TO PROVIDE MEDICAL ADVICE. Neither the Editors of Consumer Guide (R), Publications International, Ltd., the author nor publisher take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading or following the information contained in this information. The publication of this information does not constitute the practice of medicine, and this information does not replace the advice of your physician or other health care provider. Before undertaking any course of treatment, the reader must seek the advice of their physician or other health care provider.