Lake Yellow 5
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What it is
Lake Yellow 5 is a synthetic color additive derived from Yellow 5, also known as Tartrazine. It is made by combining the water-soluble Yellow 5 dye with an insoluble metallic salt, typically aluminum hydroxide, to create a pigment that is not soluble in water.
Why it's used
Manufacturers add Lake Yellow 5 to foods to provide a yellow color. Because it is insoluble in water, it is often used in products with low moisture content or those containing fats and oils, such as cookies, biscuits, candies, and dessert mixes like gelatin and pectin-based gels.
Health notes
Lake Yellow 5 is an FDA-approved color additive. In April 2025, FDA announced a plan to phase out petroleum-based synthetic dyes, which includes Yellow 5, the dye from which Lake Yellow 5 is made. JECFA has evaluated Yellow 5 and set an acceptable daily intake. EFSA has also evaluated Yellow 5. Some studies have suggested a link between synthetic food dyes, including Yellow 5, and hyperactivity in some children, particularly those who are sensitive. However, the evidence is mixed, and regulatory bodies like the FDA state that for most children, there is no demonstrated link. The FDA requires a special warning label for Yellow 5 in some prescription and over-the-counter drugs, but not for food products.
Allergen info
Not a major allergen.