Ingredient · E133

The Following: Blue 1

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add Blue 1 to foods to give them a blue color. It is …

This entry is a label phrase. See the main ingredient page: Blue 1.

What is The Following: Blue 1?

Blue 1, also known as Brilliant Blue FCF, is a synthetic (man-made) blue food coloring. It is produced from petroleum and is approved for use in food in the United States.

Is The Following: Blue 1 vegan?

The Following: Blue 1 is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is The Following: Blue 1 a major allergen?

Not a major allergen.

What is The Following: Blue 1 used for?

Manufacturers add Blue 1 to foods to give them a blue color.

Is The Following: Blue 1 safe?

Blue 1 is an FDA-approved food additive.

Why it's used

Manufacturers add Blue 1 to foods to give them a blue color. It is often found in baked goods, candies, beverages, and dairy products.

Health notes

Blue 1 is an FDA-approved food additive. The FDA revoked its approval for Red 3 in 2025, and in April 2025 announced a plan to phase out petroleum-based synthetic dyes, including Blue 1. Some studies have suggested a link between artificial food dyes and hyperactivity in children, but the evidence is mixed. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated Blue 1 and established an acceptable daily intake.

Allergen info

Not a major allergen.

Foods that contain The Following: Blue 1

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Red 40, Yellow 5, Yellow 6: What the Evidence Says →

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Last updated: October 6, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.