For those searching for the nutritional issues underlying MS, levels of vitamin D feature prominently on the list of factors that trigger the development of multiple sclerosis. Levels of vitamin D in the body are reflective of individuals’ dietary intake of vitamin D and of their degree of exposure to sunshine. Those who somehow fail to get sufficient levels of vitamin D in their bodies suffer ill health.

Countries that experience cold winters, for instance, nations in Europe and North America, are also home to the populations most vulnerable to MS. Levels of vitamin D in the bodies of the affected people tend to be low because, for a significant part of the year, they do not get much exposure to the sunlight. They are all bundled up in warm clothing, and often spend the days indoors, away from the cold. Additionally, they don’t get sufficient dietary vitamin D. As …