A synthetic 'coal tar' and azo yellow dye used in fermented foods which must be heat treated. Found in orange squash, orange jelly, marzipan, Swiss roll, apricot jam, citrus marmalade, lemon curd, sweets, hot chocolate mix and packet soups, breadcrumbs, cheese sauce, ice cream, canned fish, and many medications.

Side effects are urticaria (hives), rhinitis (runny nose), nasal congestion, allergies, hyperactivity, kidney tumors, chromosomal damage, abdominal pain, nausea and vomiting, indigestion, distaste for food; increased incidence of tumors in animals.

It appears to cause allergic and/or intolerance reactions, particularly amongst those with an aspirin intolerance.

Not recommended for consumption by children.

The Hyperactive Childrens Support Group belive that a link exists between this additive and hyperactive behavioural disorders in children.

Whilst being a commonly used colour in the UK its use is banned in Norway and Finland.