African-American

African-American

A recent insight has revealed that African-American women had lower vitamin D levels compared to white women, and vitamin D deficiency increases the risk for aggressive breast cancer.

“We know that darker skin pigmentation acts somewhat as a block to producing vitamin D when exposed to sunlight, which is the primary source of vitamin D in most people,” said Susan Steck, Ph.D., M.P.H., associate professor of epidemiology at the University of South Carolina.

Researchers defined vitamin D deficiency as a serum concentration less than 20 ng/ml, and found this to be the case in 60 percent of African-American women compared with 15 percent of white women. Serum levels were lowest among patients with triple-negative breast cancer , and aggressive disease was eight times more likely among patients with vitamin D deficiency.

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