Final answer:
Supplemental vitamin B-6, vitamin B-12, and folic acid can reduce blood levels of homocysteine. However, there is no conclusive evidence that they can reduce the risk of cardiovascular disease.
Step-by-step explanation:
The statement in the question is True. Supplemental vitamin B-6, vitamin B-12, and folic acid have been shown to reduce blood levels of homocysteine. However, there is no conclusive evidence to support that they can reduce the risk of cardiovascular disease. Homocysteine is an amino acid that is involved in the metabolism of methionine, an essential amino acid.
A deficiency in the enzymes or cofactors involved in the metabolism of homocysteine can lead to an accumulation of homocysteine and its metabolites, which has been associated with increased risk of cardiovascular and neurodegenerative diseases. While supplemental B vitamins can lower the blood levels of homocysteine, their effect on reducing the risk of cardiovascular disease is still uncertain.
It is important to note that reducing homocysteine levels alone may not be sufficient to reduce the risk of cardiovascular disease, as the development of cardiovascular disease involves multiple factors including diet, lifestyle, and genetics.