Yellow 5 And Red 40

Yellow 5 (also known as Tartrazine) and Red 40 (also known as Allura Red AC) are synthetic food dyes. They are petroleum-based and produced through chemical synthesis.

These dyes are added to foods to impart a yellow and red color, respectively, or to create other colors when mixed. They are commonly found in candies, beverages, baked goods, dairy products, and processed snacks.

Yellow 5 and Red 40 are approved by the FDA as color additives for use in food. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Red 40 and Yellow 5. Some research has explored a possible link between synthetic food dyes and hyperactivity in some children, but the evidence is mixed. The FDA states that for most children, there is no demonstrated link between these dyes and adverse behavioral effects. JECFA has evaluated both Yellow 5 and Red 40 and set acceptable daily intakes; EFSA has also evaluated these dyes.