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Quick answer: Both score equally on our risk model. Estradiol-17 beta is banned in the EU and allowed in the US; Zeranol is banned in the EU and allowed in the US.
| Property | Estradiol-17 beta | Zeranol |
|---|---|---|
| EU status | Banned | Banned |
| US status | Allowed | Allowed |
| Risk level | high | high |
| Banned in | European Union | European Union |
| Restricted in | — | — |
| Category | hormone | hormone |
| Where it hides | beef | beef |
Estradiol-17 beta is a natural estrogen used as a growth implant in US beef cattle.
Zeranol is a non-steroidal estrogenic growth implant used in US beef cattle.
Estradiol-17 beta: Banned in the EU since 1989; classified as a complete carcinogen by EU scientific committees.
Zeranol: Banned in the EU since 1989 as a hormonal growth promoter with endocrine activity.
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