My daughter who is 16 has Generalised Anxiety Disorder, with panic attacks. So I have tried to keep her on a mostly additive free diet. It has been a bit tricky, but so long as I have something ready for her after school, she doesn't care what she eats. I haven't tried to restrict her when she's out with friends, but she takes her lunch to school and only eats the bad stuff probably on the weekend. After getting serious about cutting out additives I suddenly noticed one night that our house had become a lot calmer. I guess it wasn't overnight (didn't really expect it to be) but I all of a sudden realised that things were travelling very smoothly. So I definitely believe that cutting out additives have made a big difference to her whole personality, and produced a calmer household all round. [Update one month later, this family is now reducing salicylates]. – be email