The Lab
Specimen No. 0185
AvoidSyntheticfood artificial dyes

Green 3

Fast Green FCF · E143

Master DB rating: Avoid. Listed for: Candy, canned vegetables

low confidence
Researched July 7, 2026
Green 3 molecular structure
Specimen 0185Green 3

Concerns

  • IARC evaluated the animal carcinogenicity data and classified Fast Green FCF as Group 3 (evidence inadequate to classify as carcinogenic to humans, IARC Suppl. 7, 1987); the only positive finding in the underlying rat studies was sarcomas at sites of repeated subcutaneous injection, a route not relevant to dietary exposure
  • No dietary/oral carcinogenicity has been established; the EU has not authorized the dye as a food color while FDA lists it as permitted (21 CFR 74.203)

Regulatory flags

  • ⚑IARC Class: Gr3
  • ⚑EDC Status: None
  • ⚑Regulatory: US: permitted (21 CFR 74.203); EU: not authorized as food color
  • ⚑Evidence Grade: C

Commonly found in

Candy, canned vegetables

Last researched: July 7, 2026

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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