Vitamin D deficiency cause and multiple sclerosis on chromosome 6, there is a gene that plays a role in the development of multiple sclerosis. For people without a certain version of the gene, the risk for multiple sclerosis is 1 in 1000. If someone has a certain variation of that gene, the risk increases to around 1 in 300 and 1 in 100 if a person has two copies of the gene variant . Now, researchers understand that during fetal development and very early childhood, certain proteins that are activated by vitamin D directly interact with the gene. Lack of vitamin D causes the gene to act in a way that increases the chances of developing multiple sclerosis. In other words, the news is that researchers now understand why vitamin D seems to matter in MS.
