Research: Personalized vitamin D treatment halves risk of second heart attack

According to the Science Daily website, the effect of personalized vitamin D supplementation on the risk of a second heart attack in patients who have had a heart attack was examined.

Within the scope of the research, 630 patients who had previously had a heart attack were followed between April 2017 and March 2025.

Participants were randomly divided into two groups; one group received no vitamin D, while the other group received personalized vitamin D supplements.

As a result of clinical trials in which patients' blood levels were monitored and the vitamin D dosage was adjusted according to the patient, it was determined that patients given vitamin D had a 50 percent lower chance of having a second heart attack.

The study, which tracked "major cardiovascular" events such as heart attack, stroke, and heart failure, found that 107 of the participants had developed these conditions. There was no significant difference in the incidence of major cardiac events between the two groups.