Vitamin D Deficiency Often Misdiagnosed Among Black People

A new study suggests differences in blood types among black and white people may be responsible.

By Von Diaz Nov 21, 2013

For years health care providers have been sounding the alarm on low vitamin D levels among black folks, equating the deficiency to a "hidden epidemic" that could be connected to elevated cancer rates and other health problems.  But according to a new study in the New England Journal of Medicine, doctors may have been misdiagnosing many black patients with vitamin D deficiency, due to genetic differences in blood types between white and black people. The blood test most commonly used to determine this particular vitamin deficiency doesn’t account for a unique protein found among many black people, and researchers say this genetic traits can be traced back to African ancestors.

(h/t NPR Health