Blue 1 (Brilliant Blue FCF, E133)
Updated October 2, 2026
Blue 1 (E133) is a food additive in the “colors” group. It appears in 23,376 products in our database, 19,970 of them sold in the US.
Quick facts
- Also known as
- FD&C Blue No. 1, Blue 1 Lake, Brilliant Blue FCF, E133
- E-number
- E133
- Function
- Colors
- Found in
- 23,376 products (19,970 sold in the US)
Foods that commonly contain Blue 1
Share of published products in each category whose ingredient list includes Blue 1.
Popular products with Blue 1
e NOVA 4 
NOVA 4 
b NOVA 4 
NOVA 4 
d NOVA 4 
d NOVA 4 
d NOVA 4 
d NOVA 4 
d NOVA 4 
a NOVA 4 Blue 1-free alternatives
Popular products from the same categories that don't list Blue 1 and score Nutri-Score A–C.
c NOVA 4 
c NOVA 4 
a NOVA 4 
a NOVA 4 
a NOVA 3 How to spot Blue 1 on a label
Look for any of these names in the ingredient list:
Related additives
Frequently asked questions
What foods contain Blue 1?
In our database, Blue 1 most often appears in confectioneries, biscuits, snacks and frozen desserts.
How many products contain Blue 1?
23,376 published products on Foodmetria list Blue 1, including 19,970 sold in the United States. Counts come from ingredient lists in Open Food Facts and update daily.
Product data: Open Food Facts (ODbL), updated daily. Additive information is for general education and is not medical advice. Always check the package label. Our methodology.