Vitamin D3 might be cardio-protective, study finds
A study published in the International Journal of Nanomedicine found that vitamin D3 can repair damaged endothelial cells, suggesting that the vitamin could help repair heart tissue damaged by stroke, heart attack, hypertension or diabetes. The researchers also found that vitamin D3 boosts nitric oxide concentrations and reduces oxidative stress throughout the cardiovascular system, potentially protecting against heart disease.
Source: Study Examines Vitamin D3’s Potential Effects On Blood Vessels