Other additives · Food additive

Potassium fumarate (E366)

Updated October 2, 2026

Potassium fumarate (E366) is a food additive in the “other additives” group. It appears in 3 products in our database.

Quick facts

Also known as
E366
E-number
E366
Function
Other additives
Found in
3 products

Foods that commonly contain Potassium fumarate

Pastries 0% · 1

Share of published products in each category whose ingredient list includes Potassium fumarate.

Popular products with Potassium fumarate

Potassium fumarate-free alternatives

Popular products from the same categories that don't list Potassium fumarate and score Nutri-Score A–C.

How to spot Potassium fumarate on a label

Look for any of these names in the ingredient list:

Potassium fumarateE366

Related additives

Frequently asked questions

What foods contain Potassium fumarate?

In our database, Potassium fumarate most often appears in pastries.

How many products contain Potassium fumarate?

3 published products on Foodmetria list Potassium fumarate. 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.