Vitamin D supplements do not reduce risk of cardiovascular complications

Taking vitamin D supplements does not reduce the risk of adverse cardiovascular events, according to a new review that analyzed the results from 21 clinical trials. Previous research has suggested that those with low vitamin D levels have a higher risk of heart attack and other cardiovascular problems, and researchers have been trying to figure out if boosting vitamin D levels can have a beneficial effect. The trials involved more than 83,000 people, half of whom took vitamin D supplements and half of whom were on placebo. Taking vitamin D supplements was not associated with a decrease in cardiovascular complications, including heart attack, stroke, or death. Many of the trials included in the study were not designed with a cardiovascular event as an endpoint, which could limit the findings of the study.