Black List - E additives that scientific literature has linked to hyperactivity, insomnia and decreased concentration

The Tywardreath School in Par, where Gordon Walker is the principal, has experimented by compiling a “black list” with E additives that scientific literature has linked to hyperactivity, insomnia and decreased concentration:
E 102 Tartrazine
E 104 Chinoline yellow
E 107 Yellow G2
E 110 Orange yellow S
E 120 Cochineal
E 122 AzorubineE 123 Amaranth
E 124 Cochineal-red A
E 127 Erythrocine
E 128 Red 2G
E 132 Indigotine
E 133 Brilliant blue FCF
E 150 CaramelE 151 Black
E 154 Brown FK
E 155 Chocolate brown HT
E 210 Benzoic acid
E 220 Sulphur dioxide
E 250 Sodium nitrite
E 251 Sodium nitrate
E 320 Butylhydroxyanisol
E 321 Butylhydroxytoluene