Ingredient · E102 (Yellow No. 5), E133 (Blue No. 1)

FD&C Yellow No. 5 & Blue No. 1

Source
Not animal-derived
Allergen
No
Role in food
These artificial colors are added to a wide range of processed foods and beverages …

What is FD&C Yellow No. 5 & Blue No. 1?

FD&C Yellow No. 5 (also known as Tartrazine) and FD&C Blue No. 1 (also known as Brilliant Blue FCF) are synthetic color additives. They are produced from petroleum and are used to give foods a specific color.

Is FD&C Yellow No. 5 & Blue No. 1 vegan?

FD&C Yellow No. 5 & Blue No. 1 is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is FD&C Yellow No. 5 & Blue No. 1 a major allergen?

Not a major allergen.

What is FD&C Yellow No. 5 & Blue No. 1 used for?

These artificial colors are added to a wide range of processed foods and beverages to enhance their visual appeal.

Is FD&C Yellow No. 5 & Blue No. 1 safe?

FD&C Yellow No. 5 and Blue No. 1 are approved by the FDA for use as food additives.

Why it's used

These artificial colors are added to a wide range of processed foods and beverages to enhance their visual appeal. They are commonly found in snacks, candies, baked goods, beverages, and relishes to create vibrant yellow, blue, and green hues.

Health notes

FD&C Yellow No. 5 and Blue No. 1 are approved by the FDA for use as food additives. Both JECFA and EFSA have evaluated these colors. Some studies have suggested a possible link between synthetic food dyes, including these, and hyperactivity in some children, though the evidence is mixed and not conclusive for the general population. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Yellow No. 5 and Blue No. 1.

Allergen info

Not a major allergen.

Foods that contain FD&C Yellow No. 5 & Blue No. 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.