It must also be strict. Finally the opioids make it difficult to quit the food in question as in all addictive states. More details can be obtained by writing me directly. The only certainly established peptide problem so far is gliadin, gluten and casein. For autistic children and schizophrenics it is best to stick with gluten, gliadin and casein, because that is what we have studied.
Growth is a good variable to monitor adequate nutrition.
There should always be a postive identifiable reason for removing any item from the diet and preferably some scientific evidence. Children all the way up to puberty are quite adaptable in their CNS and two year olds definitely so. They were for short periods of time though and on chronic or semichronic patients. Double blind on autistic children is very hard to do. Howver, we have run the urines blind and applied the strategy of two independent persons to carry out functional tests and evaluation.