A recent study conducted in Australia has found that regular vitamin D supplementation can contribute to better heart health. The research, based on a clinical trial involving older adults (aged 60+), indicates that vitamin D supplements may help reduce the risk of major cardiovascular events like heart attacks. This study suggests that in addition to its well-known benefits for bone health, vitamin D can also play a significant role in promoting a strong and healthy heart.

Vitamin D supplements good for heart health

Study authors indicate that although risk difference is small, it is important to note that this study is the largest of its kind so far. Further evaluations are required, particularly for individuals using statins or other heart disease medications.

Cardiovascular disease (CVD) refers to various heart and blood vessel conditions and is a leading global cause of death. The incidence of CVD events such as strokes and heart attacks is expected to rise due to longer lifespans and the growing prevalence of chronic illnesses.

For the current study, researchers in Australia conducted the D-Health Trial between 2014 and 2020 to investigate the impact of monthly vitamin D supplementation on major cardiovascular events in older adults. The trial involved 21,315 Australians aged 60-84 who were randomly assigned to receive either a monthly dose of 60,000 IU vitamin D or a placebo. The study aimed to determine if vitamin D supplements could reduce the risk of cardiovascular events.

Vitamin D cohort had lower cardiovascular events

The experiment excluded individuals with a history of high calcium levels, overactive thyroid, kidney stones, soft bones, sarcoidosis, or those already taking more than 500 IU/day of vitamin D.

In a study that lasted five years, participants took their tablets regularly, with over 80% adhering to the treatment. Out of 1,336 participants, 6.6 percent in the placebo group and 6 percent in the vitamin D group experienced a major cardiovascular event. The vitamin D group had a nine percent lower rate of such events compared to the placebo group equivalent to 5.8 fewer events per 1,000 people.