The new D-Health study was conducted in Australia from 2014 to 2020. 21,315 people aged 60-84 participated. A random placebo capsule or 60,000 IU of vitamin D was given. All taken at the beginning of each month for five years.
1,336 participants experienced a serious cardiovascular event during the trial. This occurred in 6.6% of people in the placebo group and 6% of people in the vitamin D group.
The vitamin D group had a 9% lower incidence of major cardiovascular events compared to the placebo group.
In addition, the incidence of heart attack was 19% lower and coronary revascularization frequency was 11% lower in the vitamin D group. However, there was no difference in the incidence of stroke between the placebo group and the vitamin D group.
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