Other synthetic products that we consume

Azodicarbonamide is of the Azo family as is food dye so may cause an allergic reaction in those sensitive to dye. It also may heighten an allergic reaction to other ingredients in food. This is a yellow to orange red, odorless, crystalline powder that is banned in Europe and Australia much like the azo dyes. It is used in restaurant breads and is said to turn into gas during the baking process, so is not ingested.

TBHQ (tertiary butylhydroquinone) is a petroleum based antioxidant that is added to food for use to extend the shelf life. Small amounts of TBHQ have caused nausea, vomiting, ringing in the ears, delirium and collapse and 5 grams is a fatal dose. Also it has been associated with children's behavior and other intolerances.