New research on vitamin D suggests "just one copy of the mutated CYP27B1 gene affects a key enzyme which leads people with it to have lower levels of vitamin D". This is a quote from today's BBC news. A test for carriers of this mutated gene was carried out on 3,000 sets of parents without MS who have children with MS. This research showed that "the likelihood of this gene's transmission being unconnected to the MS is billions to one against, say the researcher". Here is further proof that vitamin D is important as a supplement for those of us with MS. You can take up to 5000IU's per day and don't forget to get a minimal amount of sunshine whenever you can.
Here is the link if you would like to read the entire article for yourself: http://www.bbc.co.uk/news/health-16086004