Butylated hydroxytoluene (BHT)

2,6-di-tert-butyl-4-methylphenol.

Antioxidant in cereals, dehydrated potatoes, and packaging materials (indirect contact regulated separately).

Similar to BHA; prevents fat oxidation. Animal high-dose studies inform ADI.

Possible liver effects at very high doses in animals. Within ADI at typical dietary exposure.

Permitted in specified EU food categories.

Butylated hydroxytoluene (BHT) is a permitted food additive in the U.S. under 21 CFR 172.115. It serves a similar antioxidant function to BHA in cereals, fats, and dehydrated foods. Both EU and U.S. permit BHT in specified food categories with use-level restrictions.

Category-specific limits in Annex II Part E.

0–0.25 mg/kg body weight per day (JECFA).