Low vitamin D blood levels are associated with a significantly higher risk of relapse attacks in patients with multiple sclerosis (MS) who develop the disease during childhood.
Vitamin D deficiency may contribute to a higher number of heart and stroke-related deaths among black Americans compared to Caucasians. Genetic factors common to blacks sometimes preclude vitamin D absorption, such as a higher incidence of lactose intolerance, which can eliminate vitamin-D fortified milk from the diet, and darker skin pigment that significantly reduces vitamin D synthesis.
