Homocysteine is an amino acid.
Amino acids are the small building blocks that make up all proteins.
Some studies have shown that having too much homocysteine in the blood is related to an increased risk of heart disease. Certain vitamins can help the body eliminate homocysteine. The vitamins that appear to have the biggest influence are folic acid, vitamin B6 and vitamin B12. There have not been sufficient studies to determine if supplementing these specific vitamins will help reduce the risk of heart disease. It does seem prudent to assure that the overall diet supplies an adequate intake of folic acid, vitamin B6 and vitamin B12.