What Is TBHQ (Tertiary Butylhydroquinone)? Safety, Risks & Alternatives

⚡ Quick Facts

E-NumberE319
FDA StatusFDA-approved at levels not exceeding 0.02% of the fat or oil content (21 CFR 172.185). FDA classifies it as a food addit…
EFSA StatusEFSA set an ADI of 0.7 mg/kg body weight/day in 2004. Approved in the EU with restricted maximum levels.
ADI0.7 mg/kg body weight/day (EFSA/JECFA)
SeverityModerate Risk (6/10)

What Is TBHQ (Tertiary Butylhydroquinone)?

A synthetic antioxidant used to extend shelf life of oils, fats, and processed foods. It is a derivative of hydroquinone and is often used in combination with BHA and BHT.

Mechanism of Action

TBHQ inhibits lipid peroxidation by donating hydrogen atoms to free radicals. Some in vitro studies suggest TBHQ may affect immune cell function at high concentrations. A 2019 study found TBHQ may interfere with T-cell mediated immune responses, though the dose levels studied were higher than typical dietary exposure.

Why People Avoid TBHQ (Tertiary Butylhydroquinone)

Regulatory Status

🇺🇸 FDA

FDA-approved at levels not exceeding 0.02% of the fat or oil content (21 CFR 172.185). FDA classifies it as a food additive rather than GRAS.

🇪🇺 EFSA

EFSA set an ADI of 0.7 mg/kg body weight/day in 2004. Approved in the EU with restricted maximum levels.

Regulatory Timeline

1972 FDA approves for food use
2004 EFSA/JECFA sets ADI of 0.7 mg/kg/day
2019 Peer-reviewed study raises immune function concerns
• Banned in Japan. Restricted to lower levels in Canada and EU compared to US

Products Containing TBHQ (Tertiary Butylhydroquinone) (4 found)

#ProductBrandScore
1BUTTERY SMOOTH TEXTURED CRACKERS, BUTTERY SMOOTHWal-Mart Stores, Inc.20/100
2MULTI-GRAIN CRACKERS, MULTI-GRAINWal-Mart Stores, Inc.22/100
3MINIATURES MILK CHOCOLATE & PEANUT BUTTER CUPS, MILK CHOCOLATE; PEANUT BUTTERThe Hershey Company50/100
4MILK CHOCOLATE & PEANUT BUTTER CREME SANTAS, MILK CHOCOLATE & PEANUT BUTTER CREMEThe Hershey Company78/100

Average safety score for products containing TBHQ (Tertiary Butylhydroquinone): 43/100

Safer Alternatives

✅
Vitamin E (tocopherols)
✅
Rosemary extract
✅
Ascorbyl palmitate

Scientific Sources

  1. Boots et al. (2020). Effects of TBHQ on immune cell function. International Immunopharmacology, 78, 106064
  2. EFSA (2004). Opinion on TBHQ

Frequently Asked Questions

What is TBHQ (Tertiary Butylhydroquinone)?
A synthetic antioxidant used to extend shelf life of oils, fats, and processed foods. It is a derivative of hydroquinone and is often used in combination with BHA and BHT.
Is TBHQ (Tertiary Butylhydroquinone) safe?
TBHQ (Tertiary Butylhydroquinone) is FDA-approved at levels not exceeding 0.02% of the fat or oil content (21 CFR 172.185). FDA classifie. EFSA set an ADI of 0.7 mg/kg body weight/day in 2004. Approved in the EU with restricted maximum lev.
Where is TBHQ (Tertiary Butylhydroquinone) banned?
TBHQ (Tertiary Butylhydroquinone) is not currently banned in any major market according to our database.
What are alternatives to TBHQ (Tertiary Butylhydroquinone)?
Safer alternatives to TBHQ (Tertiary Butylhydroquinone) include: Vitamin E (tocopherols), Rosemary extract, Ascorbyl palmitate.
How can I avoid TBHQ (Tertiary Butylhydroquinone)?
Download CheckIt AI and scan any product's barcode or ingredient label. The app will flag TBHQ (Tertiary Butylhydroquinone) and suggest safer alternatives.
What foods contain TBHQ (Tertiary Butylhydroquinone)?
TBHQ (Tertiary Butylhydroquinone) is commonly found in: Frozen fish products, Cooking oils, Microwave popcorn, Fast food (frying oils), Crackers, Noodles. Our database has flagged it in 4 products.
What are the side effects of TBHQ (Tertiary Butylhydroquinone)?
Concerns about TBHQ (Tertiary Butylhydroquinone) include: Potential immune system effects at high doses; Banned in Japan; Not classified as GRAS (classified as food additive).
Is TBHQ (Tertiary Butylhydroquinone) natural or artificial?
TBHQ (Tertiary Butylhydroquinone): TBHQ inhibits lipid peroxidation by donating hydrogen atoms to free radicals. Some in vitro studies suggest TBHQ may affect immune cell function at hi.
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Related Ingredients

Compare TBHQ (Tertiary Butylhydroquinone)

TBHQ (Tertiary Butylhydroquinone) vs BHA (Butylated Hydroxyanisole)TBHQ (Tertiary Butylhydroquinone) vs BHT (Butylated Hydroxytoluene)TBHQ (Tertiary Butylhydroquinone) vs Sodium NitriteTBHQ (Tertiary Butylhydroquinone) vs Sodium BenzoateTBHQ (Tertiary Butylhydroquinone) vs Calcium PropionateTBHQ (Tertiary Butylhydroquinone) vs Propyl Gallate
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⚕️ This page provides ingredient information for educational purposes only. It is not medical advice. Consult a healthcare professional for personalized dietary guidance.

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📋 Cite This Data
APACheckIt AI. (2026). "What Is TBHQ (Tertiary Butylhydroquinone)? Safety, Risks & Alternatives | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/tbhq
MLA"What Is TBHQ (Tertiary Butylhydroquinone)? Safety, Risks & Alternatives | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/tbhq.
HTML Embed<a href="https://getcheck.it/ingredients/tbhq">What Is TBHQ (Tertiary Butylhydroquinone)? Safety, Risks & Alternatives | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientstbhq, title = {What Is TBHQ (Tertiary Butylhydroquinone)? Safety, Risks & Alternatives | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/tbhq}, note = {Retrieved 2026-03-05} }