text_1: Intake of folic acid (FA) and vitamin B6 (VB6) increases levels of homocysteine.
text_2: Risk of CHD was reduced among women who regularly used multiple vitamins (RR=0.76; 95% CI, 0.65-0.90), the major source of folate and vitamin B6, and after excluding multiple vitamin users, among those with higher dietary intakes of folate and vitamin B6.