E321 is an additive approved by the EU (European Union).
It is used as a synthetic antioxidant in food and drink products, especially
fatty food products to reduce rancidity.
The common name for E321 is butylated hydroxytoluene or BHT.
BHT (E321) is less expensive than BHA (E320) because it
is less stable at high temperatures.
Excessive consumption of E321 is
thought to cause liver damage and migraines.
E321 has also
to cause cell
division. The EU has now restricted use of E321 to reduce
the amount of this chemical in food and drink products.
Examples of food/drink products that may include E321:
Pastry products, sweets, biscuits and cakes.