Why folic acid may prevent a first heart attack, but not a second
Wednesday, February 2, 2011 - 22:30
in Health & Medicine
A perplexing medical paradox now has an explanation according to new research. The paradox is that taking folic acid, a B vitamin, lowers homocysteine in the blood which, epidemiological evidence indicates, should lower the risk of heart attack, but clinical trials of folic acid have not shown the expected benefit.