Vitamin D and Multiple Sclerosis 🌞 Vitamin D and Multiple Sclerosis: What’s the Connection? Multiple sclerosis (MS) is an autoimmune condition where the immune system attacks the nervous system. While the exact cause is still unclear, one notable pattern has emerged: MS is more common in regions farther from the equator , where sunlight exposure—and therefore vitamin D production—is lower. Researchers have long wondered if low vitamin D could contribute to MS risk. What the
