The first suggestion that artificial food colours and other food additives (AFCA) might be related to hyperactive behaviour in children was made by Feingold in a paper in the American Journal of Nursing in 1975. Although there has been considerable uncertainty on the subject over the years a 2004 meta-analysis showed that AFCA did affect the behaviour of children with attention-deficit hyperactivity disorder (ADHD). A study on the Isle of Wight reported in this journal in 2004 showed an adverse effect from artificial food colourings and benzoate preservative on …