Natural probiotics ideas?

[MLee]

Looking to go the natural route. I tried a probiotic my nutritionist recommended and it was allergy free but I stopped bc it seemed to increase tics. 

We just found out my son has dairy, egg, citrus, wheat and gluten intolerances so we have made diet changes. His gut needs healing from the gluten.  

What are some natural probiotics that would work given his food intolerances?

also—should I wait to use natural calm until his gut is healed?

thanks!