Does anyone know anything about how food affects behaviour. My 2y9m old son becomes uncontrolable after eating anything with colourings in and im begining to think it might be preservatives in foods aswell. Tonight was a prime example. At a family birthday he had chocolate cake and 2 smarties on it. (becouse i didn't want him to feel left out) He got more bouncy and heavey handed then started to strip and got upset when i put his clothes back on. he ended up throwing a huge tantrum, being held down to put clothes on and i ended up in tears. Very embarresing and stressfull. we have been haveing the same display of anger in the middle of the night and are just looking for some practical advice! Thanks for your time!