Key points from article :
No significant effect on CVD outcomes and all-cause mortality from taking vitamins A, B6, and E; ?-carotene; zinc; iron; magnesium; selenium; and multivitamins.
Niacin and antioxidants were associated with an increased risk of all-cause mortality.
Folic acid alone and B-vitamins with folic acid, B6, and B12 reduced stroke.
Multivitamins were taken by 31% of the US population in 2012.
The study was published in the Journal of the American College of Cardiology.
