It's all to do with the lectins and how they affect you because your body just doesn't deal with them - I am having to do a lot of gut healing at the moment and had to with my boys aswell - they had terrible issues and were diagnosed adhd each and autistic and it was all down to gut healing - they'd never get those same diagnosis now and people just can't believe when I tell them how bad they were!
Go to the D'Adamo site [ http://www.dadamo.com/
] and read up on there about the lectins, and also you may find it interesting to read up on Leaky Gut Syndrome [ http://www.leakygut.co.uk/
] - as this is what'll happen to us from eating the foods containing the lectins our bodies 'don't do' - there are many people and children diagnosed autistic spectrum disorders, and IBS who make incredible improvements simply by going onto a gluten and dairy free diet, and doing gut healing - interesting huh ?