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A study by Dana-Farber/Brigham and Women's Cancer Center medical oncologist
Kimmie Ng, MD, MPH, shows that African-Americans have lower levels of vitamin D in the blood and may need higher doses of vitamin D supplements to meet nationally-established goals. She adds it is very
important that further research be done on vitamin D metabolism in this subgroup of our population. Higher levels of Vitamin D may be protective against certain diseases, including survival from
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