Thanks for your Fed Up book which was recommended by the allergy clinic - we have been searching for years and getting nowhere but now it seems we have found a large part of the answer to our 6 year old son's behaviour problems. We are still working through the challenges, but to our surprise, the first challenge we did (dairy) was a definite FAIL! We almost didn't even eliminate dairy, because I was sure that was not a problem for him, however I decided to err on the side of caution and I'm glad I did! He became progressively grumpier, looked pale, seemed tired and complained of tummy aches. After a couple of months of beautiful behaviour and no tantrums, we were back to ‘Mr Revolting’. We are now dairy free again, and it has taken about 10 days for him to get back to normal. - NSW