TBHQ
Also known as: Tertiary Butylhydroquinone
AntioxidantsPreservatives
Safety rating
Use Sparingly
Eat Away!Generally SafeUse SparinglyAvoid
Purpose and Function
TBHQ (Tertiary Butylhydroquinone) is a synthetic antioxidant preservative that stabilizes fats and oils against oxidation, preventing rancidity and extending shelf life in processed and fried foods.
Commonly found in
- —Packaged snacks (chips, crackers, cookies)
- —Fried and fast foods
- —Cosmetics, varnishes, and resins
Key functions
- —Prevents oxidation and rancidity in fats and oils
Potential Risks and Side Effects
- 01Approved by the FDA and EFSA with established acceptable daily intake (ADI) levels
- 02High-dose animal studies suggested increased cancer risk, at doses far above typical human consumption
- 03A study in The Journal of Immunology suggested possible effects on immune response to allergens; more research needed
- 04Limited evidence linking it to hyperactivity in children
- 05High levels can cause nausea, vomiting, and tinnitus at acute exposure far above dietary norms