Popular vitamin and mineral supplements did not provide measurable health benefits to prevent cardiovascular disease, strokes or premature death, according to a new study.

The study published in the peer-reviewed Journal of the American College of Cardiology found no helpful or harmful results for people taking multivitamins, vitamin D, calcium, and vitamin C. The results were based on an analysis of existing information, which was published mainly between January 2012 and October 2017.

There were a few exceptions: Folate and other B vitamins (B6 and B12) showed some minor evidence of a reduction in heart attack risk and stroke risk, mainly due to a Chinese study included in the overall research. Niacin (B3) and antioxidants were found to be harmful in this analysis and increased the risk of death. This finding was a "very small signal," lead author David J.A. Jenkins stressed.

The authors note that participants in some of the studies are not representative of the general population. So, consult a doctor before throwing or buying any recommended vitamins. The study was funded by the federal government and food retailer Loblaw Companies

More: Too much vitamin B could increase the risk of lung cancer in men, according to study

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Instead of opting for supplements, Jenkins, a Canadian research director and professor at the Institute of Nutrition Science at the University of Toronto, advises people to consume needed nutrients through "a plantier Diet with less processed foods. "

This is not the first time that physicians have questioned the use of supplements. The US Preventive Services Task Force has stated that there is insufficient evidence of the benefits or harms of multivitamins to prevent cardiovascular disease or cancer, and indeed recommends against beta-carotene or vitamin E. In 2013, a group of Professors at the John Hopkins Bloomberg School of Public Health told people they should stop wasting money on vitamin and mineral supplements.

Jenkins said more research needs to be done to determine the overall results, and he hopes to investigate the links between vitamins and cancer outcomes in the future.

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