Will sees an Integrative Pediatrician. She runs yearly labs on him and suggests supplements according to his results. Yearly tests are GI mapping (for the microbiome) and blood draws. She also ran food sensitivity tests in the beginning.  It is always a good idea to have labs done before starting supplements. It is never a good idea to take random things, in random quantities to see what happens. Ask you doctor for lab work. 

That said, here are the basic, backbone of our regimen: Magnesium, Fish Oil, Vit D +K and a multi vitamin. Will also takes a daily electrolyte pill and a probiotic prescribed for him by his pediatrician. A couple others that we take are Alpha Lipoic Acid, GABA.  Look into those to learn more. 

We als0 take an off-label drug called LDN. It reduces inflammation in the body and has proven to significantly help a lot of autoimmune disease. Here is a link to learn more. Low-Dose Naltrexone for Lyme and Autoimmune Diseases - Epidemic Answers

It's important to know that I have never found a supplement that reverses T1. I do believe that LDN is very helpful. I also believe when all of the body systems are working synergistically together, overall health is also improved.