My son is almost three and we think he has sensory processing disorder. We are currently working with therapists to confirm a dx. His developmental therapist suggested we try the gluten free, casein free diet. I have bought some books and researched on the internet and all I can say is OMG! This diet is a MAJOR undertaking and really overwhelming. So I am wondering if anyone has tried this diet and has anything negative or positive about it. I am also wondering if the gluten free, casein free foods are hard to find and expensive. Thanks to anyone who has info on this!