This might sound like old news but a recent study has been done that proves there is a link between the tested colourings and hyperactive symptoms in children. The study only tested 300 children so I think the validity of it may be questioned. Here is the full article: http://news.bbc.co.uk/1/hi/health/6979976.stm
What do you think of artificial additives? Should they be banned from foods aimed at children?