Vitamin D contains steroidal properties which make this vitamin the new “bff” of autoimmune sufferers. Vitamin D deficiency is a leading risk factor for autoimmune conditions including Type 1 diabetes, multiple sclerosis, and rheumatory issues, as well as several chronic, inflammatory conditions. The serum metabolite of Vitamin D regulates the activities of the immune system, helping the body to ward off these unwanted conditions. Depending on one’s geographic location, seasonal Vitamin D deficiency may be what causes mysterious flare-ups. Considering the side-effects of prescription steroids, the naturally occurring steroid in Vitamin D makes it worth further investigation and even experimentation. Go outside and see for yourself.
 

Cutolo M, Paolino S, Sulli A, Smith V, Pizzorni C, Seriolo B. Vitamin D, steroid hormones, and autoimmunity. Ann N Y Acad Sci. 2014 Apr 16. doi: 10.1111/nyas.12432. [Epub ahead of print] PubMed PMID: 24739090. http://www.ncbi.nlm.nih.gov/pubmed/24739090