Vitamin and Mineral Supplements

A recent study from researchers at St. Michael's Hospital and the University of Toronto suggests the most commonly consumed vitamin and mineral supplements provide no consistent health benefit or harm.
Published May 28, 2018 in the Journal of the American College of Cardiology, the systematic review of existing data and single randomized control trials published in English from January 2012 to October 2017 found that multivitamins, vitamin D, calcium and vitamin C, the most common supplements showed no advantage or added risk in the prevention of cardiovascular disease, heart attack, stroke or premature death.
"We were surprised to find so few positive effects of the most common supplements that people consume," said Dr. David Jenkins, the study's lead author. "Our review found that if you want to use multivitamins, vitamin D, calcium or vitamin C, it does no harm, but there is no apparent advantage either."
The study found folic acid alone and B-vitamins with folic acid may reduce cardiovascular disease and stroke.

His team reviewed supplement data that included A, B1, B2, B3 (niacin), B6, B9 (folic acid), C, D, E; and beta-carotene; calcium; iron; zinc; magnesium; and selenium. The term 'multivitamin' describes supplements that include most vitamins and minerals, rather than a select few.

Bottom line is that food should provide the vitamins and minerals our bodies need, unless your doctor tells you to take something specific.