E-133
What is E-133?
E-133, also known as Brilliant Blue FCF or FD&C Blue No. 1, is a synthetic blue color additive. It is made from petroleum through chemical synthesis.
Is E-133 vegan?
E-133 is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is E-133 a major allergen?
Not a major allergen.
What is E-133 used for?
Manufacturers add E-133 to foods to give them a vibrant blue color.
Is E-133 safe?
In the United States, E-133 (FD&C Blue No. 1) is an FDA-approved color additive for food, drugs, and cosmetics.
Why it's used
Manufacturers add E-133 to foods to give them a vibrant blue color. It is commonly found in candies, soft drinks, baked goods, and dairy products.
Health notes
In the United States, E-133 (FD&C Blue No. 1) is an FDA-approved color additive for food, drugs, and cosmetics. JECFA has evaluated it and set an acceptable daily intake. EFSA has also evaluated this additive. Some studies have suggested a possible link between synthetic food colors, including E-133, and hyperactivity in some children, though the evidence is mixed and more research is ongoing. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Blue No. 1.
Allergen info
Not a major allergen.
Foods that contain E-133
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