Potassium alginate (E402)
Updated October 2, 2026
Potassium alginate (E402) is a food additive in the “other additives” group. It appears in 37 products in our database, 1 of them sold in the US.
Quick facts
- Also known as
- E402
- E-number
- E402
- Function
- Other additives
- Found in
- 37 products (1 sold in the US)
Foods that commonly contain Potassium alginate
Share of published products in each category whose ingredient list includes Potassium alginate.
Popular products with Potassium alginate
c NOVA 4 
c NOVA 4 
c NOVA 4 
c NOVA 4 
b NOVA 4 
c NOVA 4 
e NOVA 4 
c NOVA 4 
c NOVA 4 
c NOVA 4 How to spot Potassium alginate on a label
Look for any of these names in the ingredient list:
Related additives
Frequently asked questions
What foods contain Potassium alginate?
In our database, Potassium alginate most often appears in light margarines, margarines, 30-40% fat lightly salted vegetable fat and pastries.
How many products contain Potassium alginate?
37 published products on Foodmetria list Potassium alginate, including 1 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.