Butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT)
BHA and BHT are preservatives that help keep fats and oils from spoiling in foods like cereal and packaged cookies. Although they may be carcinogenic, BHA and BHT are not yet banned in the EU. That said, they are much more heavily regulated in Europe, even when added to cattle feed, than they are in the US.