Ds, 6, has always been a lively boy. However I can see a definite link between some types of food and his behaviour. Fruit shoots, cheap coloured ice lollies, lucky charms, starburst etc all result in him being unable to keep still, listen, he twists and turns his body etc. I'm sure there must be a llnk between some of the food colourings put in such stuff and his behaviour. Can a doctor test for it at all so I can know exactly what I need to avoid? Would I have to go private?