01Specimen No. 0171
CautionSyntheticcolorantdye
Yellow 5 / Tartrazine
yellow 5 · fd&c yellow 5 · e102
A synthetic azo dye that causes more allergic reactions than any other certified food color — affecting an estimated 360,000 Americans (< 0.12% population). The FDA and Canada require disclosure on labels. Particularly problematic for asthmatics and people with aspirin intolerance. Some studies link it to hyperactivity in children.
high confidence
Researched April 18, 2026Annotation registerSpecimen 0171
NameYellow 5 / Tartrazine
- Verdict
- Caution
02Concerns
- Highest allergenicity of all certified food dyes — including hives and asthma attacks
- Cross-reactive with aspirin in aspirin-intolerant individuals
- Linked to hyperactivity in children — EU warning label required
- Banned in Norway and Austria
03Regulatory flags
- EU requires behavioral warning label on food products containing this dye
04Commonly found in
CandyBeveragesBaked goodsPickle productsMustardMac and cheese
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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