Tartrazine Yellow #5
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What it is
Tartrazine, commonly known as Yellow 5, is a synthetic lemon-yellow azo dye. It is manufactured from petroleum. This dye is water-soluble and provides a bright yellow color.
Why it's used
Manufacturers add Yellow 5 to food products to impart a yellow color. It is frequently found in candies, soft drinks, baked goods, snacks, and some processed foods. Its primary function is to enhance the visual appeal of food.
Health notes
Tartrazine (Yellow 5) is an FDA-approved color additive for use in food, drugs, and cosmetics in the United States. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, which includes Yellow 5. Some studies have suggested a link between synthetic food dyes, including Yellow 5, and hyperactivity in some children, though the evidence is mixed. JECFA has evaluated tartrazine and set an acceptable daily intake. EFSA has also evaluated tartrazine.
Allergen info
Not a major allergen.