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Tailored Vitamin D Cuts Heart Attack Risk by 52% in Landmark Study

New study shows personalized vitamin D dosing reduces heart attack risk by 52% in adults with heart disease. Research presented at American Heart Association Scientific Sessions 2025.

This research represents a potential paradigm shift in cardiovascular prevention, suggesting that personalized vitamin D supplementation could significantly reduce recurrent heart attacks in high-risk patients. For the millions of Americans living with heart disease, these findings offer a promising, accessible intervention that could complement existing treatments. The study's emphasis on individualized dosing based on blood levels rather than standardized recommendations highlights the importance of personalized medicine in chronic disease management. Given that vitamin D deficiency is widespread and heart disease remains the leading cause of death globally, this approach could have substantial public health implications if validated through further research and implemented in clinical practice.