AvoidSyntheticfood additivepreservative

TBHQ (Tertiary Butylhydroquinone)

tbhq · tertiary butylhydroquinone · tert-butylhydroquinone

Petroleum-derived preservative used in fast food oils and packaged snacks. Animal studies link it to vision disturbances, tumor promotion, and immune system effects.

medium confidence
Researched April 18, 2026
  • Animal studies show vision disturbance and liver enlargement at high doses
  • Possible tumor promoter in rodent studies
  • May enhance allergic sensitization [inference from animal studies]
  • EU and WHO set an acceptable daily intake — best minimized
  • Not permitted in food in EU, Japan, Australia
  • FDA allows max 0.02% of total fat content
Fast food frying oilCrackersMicrowave popcornFrozen fishChips

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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