TBHQ (Tert-Butylhydroquinone)

Also known as: Tert-Butylhydroquinone, tBHQ

Antioxidant / Preservative · E319

Regulatory Status

United States (FDA)

Approved

FDA-approved at up to 0.02% of fat/oil content.

European Union (EFSA)

Approved

Approved in EU with usage limits.

Safety Profile

Safe at regulated levels per FDA and EFSA. Concerns are based on animal studies at doses far exceeding normal dietary exposure.

Health Concerns

  • • High doses cause tumors in animal studies
  • • May affect immune system function
  • • Nausea and delirium at very high doses (far above food levels)

Commonly Found In

Fast foodFrozen fish productsCooking oilsCrackersMicrowave popcorn

Sources: FDA Substances Added to Food, EFSA opinions, EU Regulation 1333/2008, IARC monographs

SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.