Sue and I have been in two minds whether any of the "hokey science" stuff we're doing with Emily is actually of any benefit. This includes cutting out gluten and dairy and also the homeopathic remedies she's been on. They say that dairy effects will be noticeable in 3 days but gluten effects can take 3 months to see.
We haven't really seen any dairy-related changes yet, but are hopeful that all the research does point to a gluten-free gut paving the way to a healthier gut and a lessening of the autistic behaviours we've come to tolerate.