An excellent resource book for dietary intake for health needs: The World’s Healthiest Foods, Essential Guide for the Healthiest Way Of Eating. By: George Mateljan.
It has helped me better understand the links between certain nutrients (in abundance and in abcence) links to body health, diseases, and metabolic disorders.
Also, a patient client brought a youtube link to me that I found to be a helpful conversation and instructional start point for talking about MS and autoimmune related nutrition. You tube search “Minding Your Mitochondria” by Dr. Terry Wahls. Watch her presentations. Then you should have a good idea of what kinds of medical journal articles to look for on the subject.