In a meta-analysis published in The Lancet Diabetes & Endocrinology, investigators examined gene variants known to be involved in vitamin D synthesis as well as the availability of the substrate for Vitamin D and found that “each 10% increase in vitamin D concentration was associated with lower systolic and diastolic blood pressure readings and a reduced odds of hypertension”. The meta-analysis reviewed data from 146,581 subjects enrolled in D-CarDia and other studies.
Reference: Afzal S and Nordestgaard BG. Low vitamin D and hypertension: a causal association? The Lancet Diab & Endocrin 2014;2:682-684. doi:10.1016/S2213-8587(14)70119-6