Tartrazine

No. Tartrazine is an authorised food colour in the EU under Regulation (EC) No 1333/2008, though foods containing it must carry a warning that it “may have an adverse effect on activity and attention in children.” It is also approved in the US as FD&C Yellow No. 5, but in April 2025 the FDA announced it is working with industry to voluntarily phase out Yellow No. 5 and other petroleum-based dyes by the end of 2026 — a phase-out, not a formal ban.

A 2007 UK study (McCann et al., the “Southampton study”) linked a mixture of six colours including tartrazine, plus a preservative, to increased hyperactivity in some children. EFSA reviewed it, found the evidence “limited,” could not attribute the effect to any single additive, and did not change the additives’ safety limits. As a precaution the EU still requires a warning label, and authorities note hyperactivity has many possible causes.

It is synthetic. Tartrazine is a man-made azo dye synthesised from petroleum- or coal-derived chemicals, not obtained from a natural source. In the US, once a batch is certified by the FDA the substance “tartrazine” is renamed FD&C Yellow No. 5.

By composition, yes — tartrazine is a synthetic dye made from petrochemical raw materials with no animal-derived ingredients, so it is generally considered suitable for a vegan diet. Some strict vegans still choose to avoid synthetic dyes because additives are subject to animal safety testing.

EFSA re-evaluated tartrazine in 2009 and concluded the existing Acceptable Daily Intake (long established at 0–7.5 mg per kg of body weight per day) did not need changing. The panel did note tartrazine may cause intolerance reactions — such as skin irritation — in a small proportion of sensitive people. This is general regulatory information, not medical advice; anyone with a known sensitivity should check labels and consult a professional.

Tartrazine gives a lemon-yellow colour and is used in soft drinks, sweets and confectionery, snack foods, desserts, sauces and some medicines. In the EU any food or drink containing it must declare it (as “tartrazine” or “E102”) and carry the children’s activity/attention warning, so the label is the reliable way to check.

Yes — it contains no animal-derived material. It is a synthetic azo dye made from petroleum-derived precursors. Some vegans still avoid synthetic azo colours because of the animal testing behind their safety assessments. The same applies to a vegetarian diet.

Yes — the additive itself contains no gluten. A gluten-free claim belongs to the finished product, though — check the pack, not the additive.

It is a synthetic azo dye made from petroleum-derived precursors and contains no animal-derived material, so the additive itself is not inherently non-halal. Certification applies to a finished product rather than to an additive, so a halal certification mark on the pack is the authoritative signal.

EFSA has set an acceptable daily intake for tartrazine and it remains authorised in the EU. Two effects are documented: EU law requires foods containing it to warn that it "may have an adverse effect on activity and attention in children", and it is associated with urticaria and other pseudo-allergic reactions, particularly in people intolerant of aspirin or NSAIDs. Reactions are uncommon at normal intakes.