Rd 40
What is Rd 40?
Red 40, also known as Allura Red AC, is a synthetic red food dye. It is made from petroleum. It is one of the most commonly used food colors in the United States.
Is Rd 40 vegan?
Rd 40 is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Rd 40 a major allergen?
Not a major allergen.
What is Rd 40 used for?
Manufacturers add Red 40 to foods and drinks to give them a bright red or orange-red color.
Is Rd 40 safe?
Red 40 is an FDA-approved color additive for use in food.
Why it's used
Manufacturers add Red 40 to foods and drinks to give them a bright red or orange-red color. It is often found in candies, beverages, baked goods, dairy products, and cereals.
Health notes
Red 40 is an FDA-approved color additive for use in food. JECFA has evaluated Red 40 and set an acceptable daily intake. EFSA has also evaluated Red 40. Some studies have suggested a link between synthetic food dyes, including Red 40, and hyperactivity in some children, though the evidence is mixed and not all studies agree. In April 2025, FDA announced a plan to phase out petroleum-based synthetic dyes, and Red 40 is included in this plan.
Allergen info
Not a major allergen.
Foods that contain Rd 40
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