A large Danish study found a strong statistical link between low blood levels of vitamin D and increased risk of heart disease and death.
The population study measured baseline vitamin D levels, then followed up over 29 years. The researchers also performed a meta-analysis of 35 additional studies.
The team cautions that this is not a causal proof. However, there is a strong link. This could mean either that low vitamin levels indicate poorer health status, or that vitamin D levels do directly affect heart health.
The official conclusion of the study "We observed increasing risk of ischemic heart disease, myocardial infarction, and early death with decreasing plasma 25-hydroxyvitamin D levels."
Via Ray and Terry's