Are Low Vitamin D Levels a Cause of Health Disparities?

Vitamin D is an exception in the vitamin world because it can ? under some conditions ? be produced by the body without the need for a dietary source. Adequate vitamin D is produced by the skin when exposed to UVB light of sufficient strength. This is good, because there are few good food sources of vitamin D. Vitamin D production is not the same in everyone, however. Individuals with darker skin produce less vitamin D. In fact, it is thought that darker skin color provides a survival advantage […]