Are vitamins useless?
The staff of St. Michael's Hospital in Toronto and the University of Toronto performed a systematic review of existing data, including the results of randomized control studies published in English from January 2012 to October 2017. He showed that multivitamins, vitamin D, calcium supplements and vitamin C are not related to the prevention of cardiovascular diseases, heart attack, stroke or death for any reason. Data on multivitamins containing A, B1, B2, B3 (nicotinic acid), B6, B9 (folic acid), C, D and E, as well as carotene, calcium, iron, zinc, magnesium and selenium were also reviewed. Their reception did not cause any harm, but they did not give a positive effect either.
The study showed that only folic acid and complexes containing folic acid and other B vitamins reduced the risk of cardiovascular diseases and stroke. Nicotinic acid and antioxidants have shown a very weak effect.
Multivitamins, vitamin D, vitamin C and calcium do not reduce the incidence of cardiovascular disease (A) and death from any cause (B). Folic acid and vitamin B complex significantly reduce the incidence of stroke and cardiovascular disease (C). Antioxidants and nicotinic acid significantly reduce the incidence of death from any cause (D). Source: article in the Journal of the American College of Cardiology.
According to the authors, people need to consciously choose supplements and understand that they must correspond to a specific deficiency that has been identified by a doctor. Given the absence of significant positive data, except for the potential reduction of the risk of stroke and cardiovascular diseases with folic acid, a healthy diet is sufficient to saturate the body with vitamins and minerals.
Article by D. J. A. Jenkins et al. Supplemental Vitamins and Minerals for CVD Prevention and Treatment is published in the Journal of the American College of Cardiology.
Aminat Adzhieva, portal "Eternal Youth" http://vechnayamolodost.ru based on EurekAlert: Most popular vitamin and mineral supplements provide no health benefit, study finds.