Action On Additives: "These sweets may look bright and cheerful, but the vivid colours are often produced using artificial colourings, including those linked to hyperactivity in children.Few children or adults will stop to examine the tiny ingredients information given on a packet of sweets, or will be aware that some artificial colourings are linked to hyperactivity, can cause allergic reactions and (in some cases) are banned in the USA because they are considered unsafe."
Of over 1000 products listed, most are targetted at children; banning the "E-numbers" alone might cut 'ADHD' cases by 30%.