Additives
Fast Green FCF (E143): What It Is and Is It Safe?
Limited risk
Colour · Synthetic colour
Fast Green FCF is a synthetic triarylmethane dye, authorised in the US as FD&C Green No. 3 but not permitted as a food colour in the EU/UK. IARC places it in Group 3, not classifiable as to carcinogenicity, and the JECFA/WHO review found it has low toxicity and is not carcinogenic or genotoxic. It is poorly absorbed from the gut.
- Category
- Colour — Synthetic colour
- Typically used in
- Not authorised in EU/UK food; used in US sweets, drinks and desserts.
- Regulatory status
- Not authorised in the EU/UK; permitted in the US as FD&C Green No. 3.
Scrannr flags Fast Green FCF automatically when you scan a barcode.
Sources
Where this comes from
- IARC (2018) — Agents Classified by the IARC Monographs Volumes 1-123 https://monographs.iarc.who.int/wp-content/uploads/2018/09/ClassificationsAlphaOrder.pdf
Products
Products containing Fast Green FCF
We're building product pages that show real UK products containing Fast Green FCF, using Open Food Facts data. They'll appear here soon — in the meantime, scan any barcode with the Scrannr app to check for it instantly.
Let Scrannr read the label.
Scan a barcode and get the additives flagged in plain English, plus a clear health score. Free to download.