Is Butylated Hydroxytoluene Banned? EU vs US Status, Risks & Where It Hides
TL;DR: Butylated Hydroxytoluene is banned in the EU but allowed in the US (food additives).
Also called BHT. (E321)
Other names: BHT, E321, 2,6-di-tert-butyl-p-cresol, Dibutylhydroxytoluene
Is Butylated Hydroxytoluene banned in the EU?
| EU status | Banned |
|---|---|
| US status | Allowed |
| Risk level | — |
| Where it shows up | Kellogg's Frosted Flakes (US), Various Kellogg's/Post cereals (US), Potato chips, Vegetable oils, Chewing gum, Various snack foods |
What is Butylated Hydroxytoluene?
Butylated hydroxytoluene (BHT) is a synthetic phenolic antioxidant preservative derived from petroleum. A white crystalline solid with formula C15H24O, it prevents fat oxidation in processed foods, cosmetics, and industrial applications. Often used synergistically with BHA.
Why is Butylated Hydroxytoluene used in food?
BHT prevents oxidative rancidity in fats, oils, cereals, and fat-containing foods, extending shelf life. Effective at very low concentrations (0.02% of fat). Heat-stable and synergistic with BHA. Used in Kellogg's and Post cereals, among other products.
Is Butylated Hydroxytoluene dangerous? Documented risks
BHT has complex, bidirectional carcinogenicity data — some NTP bioassays found liver tumors in female mice at high doses, while other studies suggested BHT might inhibit cancer initiation. IARC has not formally classified BHT due to conflicting evidence. A 2017 study linked BHT to thyroid hormone disruption in female rats. The American Academy of Pediatrics (2018) recommended reducing synthetic preservative exposure including BHT in children. Kellogg's uses vitamin E in European versions of cereals that contain BHT in US versions — a commercially meaningful substitution.
Common US products containing Butylated Hydroxytoluene
How to avoid Butylated Hydroxytoluene: safer alternatives
Mixed tocopherols (natural vitamin E), rosemary extract, and ascorbyl palmitate effectively replace BHT in food and personal care products.
Frequently asked questions about Butylated Hydroxytoluene
Is butylated hydroxytoluene (BHT) safe?
FDA considers it GRAS. Japan banned it; EU restricts it. NTP found bidirectional carcinogenicity effects. Thyroid disruption documented in animal studies. Precautionary avoidance, especially for children, is reasonable.
Why is BHT in cereal?
BHT is added to cereal bags/packaging and sometimes to the cereal itself as an antioxidant preservative to prevent the cereal's oil content from going rancid, extending shelf life.
Does Europe use BHT in cereals?
Generally not — European versions of major cereals (including Kellogg's Frosted Flakes) use mixed tocopherols (vitamin E) instead of BHT, demonstrating the commercial feasibility of substitution.
Is BHT a hormone disruptor?
Animal studies suggest BHT can interact with estrogen receptors and disrupt thyroid hormone levels. A 2017 Environmental Science & Technology study found BHT disrupted thyroid hormone in female rats.
What is the difference between BHT and BHA?
Both are synthetic phenolic antioxidants. BHA is IARC Group 2B; BHT has more complex bidirectional carcinogenicity data. Often used together synergistically. Both banned in Japan; restricted in EU; broadly permitted in US.
How do I avoid BHT?
Check labels for 'BHT,' 'butylated hydroxytoluene,' or 'E321.' Choose organic-certified products or those using natural preservatives like mixed tocopherols or rosemary extract.
Is BHT in cosmetics harmful?
BHT in cosmetics has been linked to potential endocrine effects. EWG rates it as a moderate concern in Skin Deep. EU restricts BHT concentrations in cosmetics.
What replaced BHT in European cereals?
Mixed tocopherols (natural vitamin E sourced from vegetable oils) have replaced BHT in most European cereal formulations. Tocopherols provide equivalent antioxidant protection without BHT's safety concerns.
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Sources
- NTP Carcinogenesis Studies of BHT (Technical Report 150) — NTP/NIH
- EFSA Scientific Opinion on BHT (E321) 2012 — EFSA
- AAP 2018 Policy on Food Additives — AAP
Our scores are never influenced by brands. Last updated 6/10/2026.