A meta-study found no benefit or harm in vitamin supplements
A meta-study found no benefit or harm in vitamin supplements

Video: A meta-study found no benefit or harm in vitamin supplements

Video: A meta-study found no benefit or harm in vitamin supplements
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In a meta-study of recent data on the effects of vitamins and multivitamin complexes, no significant results were found from their intake.

A large group of Canadian scientists presented to the Journal of the American College of Cardiology the results of a systematic review of studies of popular vitamin, multivitamin and vitamin supplements that were published in English between January 2012 and October 2017. The work showed that they practically do not affect mortality from all causes.

“We were surprised to find so few beneficial effects in the most common supplements,” said study co-author David Jenkins. "Our review showed that if you choose to take a multivitamin, vitamin D, calcium or vitamin C, then they will not harm, but there will be no noticeable benefit either."

The authors divided the studied supplements into three groups, and only for the first did they find a minimal positive correlation between taking and reducing the risk of death: folic acid and B vitamins may have some effect on the development of cardiovascular diseases. The second group (multivitamins, vitamins C, D, beta-carotene, calcium, selenium) does not seem to have any effect; taking the third (antioxidant complexes, niacin) may even have mild negative consequences.

"There is no consistent evidence of the benefits of any supplement in a variety of dietary conditions (including the scarcity and abundance of a variety of foods)," the scientists conclude.

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