
Instant Food Score
E131
Synthetic blue dye
Use CautionCode
E131
Safety
caution
Found in
4 categories
Synthetic blue dye
Used as patent blue v across packaged foods for colour, preservation, texture or flavour. Check the ingredients list for E131 or its INS equivalent.
Use in moderation — health concerns reported at higher doses
Tip: Scan the barcode with Instant Food Score to see this additive flagged in context — with its exact share of ingredients and overall 0–100 score.
Health Verdict
Patent Blue V is permitted in foods but recommended in moderation, especially for sensitive individuals.
Most variants of Patent Blue V are synthetic or plant-derived. However, check individual packaging labels for animal-origin emulsifiers or processing aids.
Certain synthetic dyes and preservatives (like nitrites or benzoates) may trigger hyperactivity or allergies in children. Look out for safety warnings.
E-numbers starting from E100 to E199 range from natural plant extracts (like curcumin and beetroot) to synthetic colorants. Check the product label for specific sourcing.
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