Vitamin D is pretty well studied as an immunomodulator, and there is a connection between inflammation and autoimmune disease. https://www.ncbi.nlm.nih.gov/pmc

Vitamin D is pretty well studied as an immunomodulator, and there is a connection between inflammation and autoimmune disease. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3166406/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3166406/