Color FD&C Red#40

FD&C Red No. 40, also known as Allura Red AC, is a synthetic food coloring. It is made from petroleum and is one of the most commonly used red food dyes in the United States.

Manufacturers add FD&C Red No. 40 to foods and drinks to give them a bright red color. It is often found in candies, soft drinks, fruit-flavored snacks, and some baked goods.

FD&C Red No. 40 is an FDA-approved color additive for use in food, drugs, and cosmetics. JECFA has evaluated it and set an acceptable daily intake, and EFSA has also evaluated this dye. Some research has explored a possible link between synthetic food dyes and hyperactivity in some children, but the FDA states that current scientific evidence does not show a causal link for the general population. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Red 40.