1. Dementia. vitamin D deficiency in older adults may double the risk for some forms of dementia, including Alzheimer’s disease. accounting for as many as 80 percent of dementia cases, according to the Alzheimer’s Association.
Heart disease. According to research presented at the American College of Cardiology’s 63rd Annual Scientific Session, vitamin D deficiency has been linked to more severe cases of heart disease.
Researchers found that more than 70 percent of patients undergoing coronary angiography – imaging to see how blood is flowing through the arteries – had a vitamin D deficiency.