Washington, Jan. 20 -- : A new study by Yale University explains that the abnormal immune system response that causes multiple sclerosis (MS) by attacking and damaging the central nervous system can be set off by the lack of a specific fatty acid in fat tissue.

The finding published in The Journal of Clinical Investigation suggests that dietary change might help treat some people with autoimmune disease.

Fat tissue in patients diagnosed with MS lack normal levels of oleic acid, a monounsaturated fatty acid found at high levels in, for instance, cooking oils, meats (beef, chicken, and pork), cheese, nuts, sunflower seeds, eggs, pasta, milk, olives, and avocados, according to the study.

This lack of oleic acids leads to a loss of the metab...