Vitamin D is naturally made when we have sufficient sun exposure. African-Americans have been known to have lower levels than their Caucasian counterparts. They also have higher levels of hypertension.
A new study was done to see if supplementing vitamin D would have any effect on blood pressure. Two hundred and fifty African-Americans were given either placebo, 1,000 IU, 2,000 IU or 4,000 IU of vitamin D for six months.
The results showed that with increasing levels of vitamin D, systolic blood pressure decreased significantly.
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