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Janet Taylor, MD Vitamin D study in African-Americans
The study was done in African-Americans. Early findings indicate that higher doses of Vitamin D helps the body get rid of salt. Please check with your doctor before taking Vitamin D. It's not a substitute for anti-hypertensive medication, but may help.
We’ve heard many claims in the past decade — and much debate — about the role of vitamin D in the prevention and treatment of conditions as varied as brittle bones, heart disease, cancer, diabetes and dementia.
Now researchers at Brigham and Women’s Hospital in Boston have what they think may be another tantalizing lead: Their study suggests moderate doses of vitamin D supplements might help reduce high blood pressure.
It was a small study in a particular group — roughly 250 African-American adults. “African-Americans have a much higher likelihood of being vitamin D deficient compared to other races, and also a higher likelihood of having high blood pressure,” says nephrologist John Forman, who led the study.
The risks of high blood pressure are long-established. Among other complications, hypertension in some people is thought to double the risk of having a heart attack or stroke. Earlier studies in animals and people have hinted that vitamin D supplements might mitigate that cardiovascular risk for some.
Forman and his colleagues randomly divided their study’s participants into four groups. One group took 1,000 international units of vitamin D a day, another group took 2,000 IU and another 4,000. The fourth group got a placebo; no one at the time knew which dose they’d been given. After three months of daily treatment, Forman checked everyone for changes in blood pressure.
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