US Pharm
. 2011;36(12):10. 

Kansas City, KS—Researchers from the University of Kansas have found that vitamin D deficiency nearly doubled an individual’s risk of dying, while correcting the deficiency with supplements significantly lowered the likelihood of death. The study, which was recently published in the American Journal of Cardiology, involved 10,899 adults at the University of Kansas Hospital and Medical Center, of whom 70% were deficient in vitamin D (levels below 30 ng/mL) and at higher risk for diabetes, hypertension, and cardiomyopathy. When patients took vitamin D supplements, their risk of death from any cause was approximately 60% lower. Previous research has indicated that 25% to 57% of adults have insufficient levels of vitamin D. 

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