My six year old son was diagnosed with asthma/allergy at 2 years old. Several medications were diagnosed for him. Not wanting to go down this path I consulted a naturopath, who managed his condition with vitamins and restricted diet. But this year upon starting school my normally bright, happy child became depressed, aggressive and hyperactive. A pattern of school canteen usage emerged at which point I requested a list of ingredients for some of the things he was buying. To my horror, the slushy he was ordering contained two artificial colours and two preservatives (benzoate preservative 211 and potassium sorbate 202). The lady who runs the canteen said that this product is known as an AMBER school product.  Apparently you are allowed to sell it in canteens as long as you do not have too many other AMBER products on the menu. – Leesa, by email