Im sorry if this sounds nutty..Im an adult aspie so my brain loves connectiong information....like a jig saw puzzle..so It might not be real accurate but I believe that the child is autistic no matter what...the varying degrees of food intolerance/allergy can cause the autisim symptoms to worsen because if the child who can not communicate or has impaired communication skills is in misery or physical discomfort...the child will become more withdrawn or spike in stim/behaviors. If these feelings related to physical turmoil (the allergy) are chronic before the age of 5 then the reactions or stim/behavior may become a prsonality traite set in stone. Think of the human (at any age) and their "go to" for self soothing. This is why diet therapy may be "curative" of the autisim symptoms for one child and not another. This is true for ALL alternative and medicinal "cures" therapy. If you remove or sooth a persons ailments you reduce or correct a behavior. Now it is possible that a child was showing strong autistic symptoms..but was never truely autistic...those are your reports and testimonials of "cures." In the same way you could have a high function autistic person...but not know it because an allergy (or the autisim linked stomach troubles) and find a cure for the ailment...drastically improving the childs funftioning level.

we went gluten free caisen free for about 8 months...several symptoms stopped immediately (Including uncontrollable diarreah and abdominal migrains) then we slowly began working gluten and caisen back into his diet and were able to single out what foods effect him negatively in anyway(: My advise is to do it NOW if you are, because it will get harder as he gets older to control his diet.

We did gluten-free for almost a year when we thought our son might have Celiac Disease (before his Asperger's diagnosis). We already knew he couldn't digest milk (not even breast-milk) we always just used lactase and that helped.

We thought we noticed some minor improvements when he was Gluten free. But after the trial period, we re-introduced wheat/gluten foods with no noticeable differences, except one:
He can now tolerate milk like everyone else. Perhaps the gluten-free diet allowed his intestines to heal enough to now produce its own lactase as its supposed to.

Overall, we didn't notice differences in his behaviour.

Some of our kids are allergic to wheat, milk. My son did a test and it says he s not allergic but wheat seems to bother him, so I believe that it does affect our kids just not probably the way it usually bothers quote unquote normal kids. If you notice that it affects your child, then follow your instincts and get him or her off wheat and or milk.

My son(actually whole family) is gluten free and dairy free. We saw a huge difference within 3 weeks of removing those. I don't care what the Dr's say, I think everyone should try. It may or may not work but at least you can say you tried!!