Vitamin D cuts heart attack risk by 52%. Why?
Summary
The article reports that TARGET-D, a randomized trial in post-heart-attack patients, found a 52% reduction in recurrent heart attacks when vitamin D levels were maintained in the 40–80 ng/mL range. It explains potential mechanisms linking vitamin D to heart health, how vitamin D is measured, sources, and caveats about the study's preliminary nature and broader applicability.