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| Factor | BHT (Butylated Hydroxytoluene) | Propylene Glycol |
|---|---|---|
| E-Number | E321 | E1520 |
| Category | Preservative | Additive |
| Severity | High Risk (8/10) | Moderate Risk (6/10) |
| FDA Status | FDA classifies BHT as GRAS at levels up to 0.02% of the fat content of food (21 CFR 182.3173). | FDA classifies propylene glycol as GRAS (21 CFR 184.1666) for direct addition to food at levels not to exceed 5% of tota… |
| EFSA Status | EFSA set an ADI of 0.25 mg/kg body weight/day in 2012. Approved in the EU with restricted usage levels. | EFSA established a group ADI of 25 mg/kg body weight/day for propylene glycol (E 1520) in 2018. EFSA noted that dietary … |
| Banned In | Japan Romania Sweden Australia | — |
| Products Found | 502 | 198 |
Based on severity scores, BHT (Butylated Hydroxytoluene) (8/10) poses a higher risk than Propylene Glycol (6/10).
Both ingredients should be consumed mindfully. Use CheckIt AI to scan products and avoid whichever ones concern you most.
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Download CheckIt AI — Scan Free →⚕️ This comparison is for educational purposes only. It is not medical advice. Consult a healthcare professional for personalized dietary guidance.
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CheckIt AI. (2026). "BHT (Butylated Hydroxytoluene) vs Propylene Glycol — Which Is Worse? | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/bht-vs-propylene-glycol"BHT (Butylated Hydroxytoluene) vs Propylene Glycol — Which Is Worse? | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-04-17. https://getcheck.it/ingredients/bht-vs-propylene-glycol.<a href="https://getcheck.it/ingredients/bht-vs-propylene-glycol">BHT (Butylated Hydroxytoluene) vs Propylene Glycol — Which Is Worse? | CheckIt AI — CheckIt AI</a>@misc{checkit2026ingredientsbhtvspropyleneglycol,
title = {BHT (Butylated Hydroxytoluene) vs Propylene Glycol — Which Is Worse? | CheckIt AI},
author = {CheckIt AI},
year = {2026},
publisher = {Climaverse PBC},
url = {https://getcheck.it/ingredients/bht-vs-propylene-glycol},
note = {Retrieved 2026-04-17}
}