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Red 40
Synthetic azo dye used as a color additive in foods and cosmetics to provide red coloration.
Mineral or nutrientUpdated Feb 13, 2026
Health score-3.0
-5Poor5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Potential allergenicity, hypersensitivity reactions, hyperactivity concerns in children, regulatory restrictions in some countries
Benefits
Provides vibrant red color to food and cosmetic products
References
Waters containing Red 40
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