Avoid
E143 — Green 3
Color
E143 (Green 3), a color, is rated "avoid": worth avoiding. A synthetic green dye (Fast Green FCF). Banned in the EU; still permitted in the US, though the FDA moved to revoke several synthetic dyes in 2025. Animal studies have reported tumours at the injection site and bladder effects.
Why it's rated “avoid”
A synthetic green dye (Fast Green FCF). Banned in the EU; still permitted in the US, though the FDA moved to revoke several synthetic dyes in 2025. Animal studies have reported tumours at the injection site and bladder effects.
Risk rating: Avoid
Known or suspected to cause harm: a substance EFSA or another regulator has flagged, or one restricted in some jurisdictions. Best kept out of a regular diet.
Frequently asked questions
Is E143 (Green 3) safe?
A synthetic green dye (Fast Green FCF). Banned in the EU; still permitted in the US, though the FDA moved to revoke several synthetic dyes in 2025. Animal studies have reported tumours at the injection site and bladder effects.
What are other names for E143?
E143 is also known as green 3, fast green fcf, fast green.
