Heart Attack Risk Halved in Adults with Heart Disease Using Tailored Vitamin D Doses
A new study indicates that adults with established heart disease who receive vitamin D supplements calibrated to achieve blood concentrations between 40 and 80 ng/mL experience roughly a 50 % reduction in heart‑attack risk compared with those who do not receive such targeted dosing.
The research, conducted across multiple cardiology centers, enrolled participants with a prior diagnosis of coronary artery disease. Patients were divided into two groups: one received standard care, while the other was prescribed vitamin D in amounts adjusted to maintain serum levels in the range deemed optimal for cardiovascular health. Blood levels were monitored regularly, and dosing was modified as needed to stay within the target window.
Results showed that participants who achieved the specified vitamin D range had a markedly lower incidence of myocardial infarction over the follow‑up period. The investigators attribute the benefit to vitamin D’s potential role in modulating inflammation, improving endothelial function, and influencing calcium metabolism, all of which are factors linked to atherosclerotic progression.
Experts caution that while the findings are promising, they should be interpreted within the context of broader lifestyle and medical management. Cardiologists note that vitamin D supplementation is unlikely to replace conventional therapies such as antiplatelet agents, statins, or blood‑pressure control, but may serve as an adjunctive strategy for patients with documented deficiencies or suboptimal levels.
Health authorities recommend that clinicians assess vitamin D status in patients with cardiovascular disease and consider individualized supplementation when deficiencies are identified. Ongoing trials aim to confirm these observations in larger, more diverse populations and to determine the optimal dosing algorithms.
In the meantime, the study adds to a growing body of evidence suggesting that personalized nutrient management could become an integral component of comprehensive heart‑disease care, offering an additional tool to reduce the burden of heart attacks worldwide.
