Supplements for Heart Disease

The answer is D. Folic acid

Here's how your colleagues have answered:

Vitamin D   ………………………………………………..36%

Calcium  ……………………………………………………3%

Vitamin C   ………………………………………………... 7%

Folic acid    ………………………………………………..23%.

Niacin   ……………………………………………………..31%

Explanation: A recent analysis found that folic acid alone reduced CVD and stroke risk; B vitamins containing folic acid, B6, and B12 also reduced stroke risk. Several other commonly used vitamins and supplements, including vitamin D, calcium, niacin, vitamin C, and beta-carotene, did not confer a consistent benefit on CVD prevention, stroke reduction, or all-cause mortality. The effects of folic acid and B vitamins are based on low- to moderate-quality evidence; additional research is warranted before incorporating the use of these supplements into preventive guidelines.

Sources:

Am J Med Sci. 2017 Oct;354(4):379-387. doi: 10.1016/j.amjms.2017.05.020.

American Heart Association