Acids & acidity regulators · Food additive

Phosphoric acid (E338)

Updated October 2, 2026

Phosphoric acid (E338) is a food additive in the “acids & acidity regulators” group. It appears in 6,950 products in our database, 4,526 of them sold in the US.

Quick facts

Also known as
E338
E-number
E338
Function
Acids & acidity regulators
Found in
6,950 products (4,526 sold in the US)

Foods that commonly contain Phosphoric acid

Sodas 11% · 847
Groceries 1% · 782
Colas 43% · 305
Cakes 3% · 237
Iced teas 7% · 229
Breads 1% · 126

Share of published products in each category whose ingredient list includes Phosphoric acid.

Popular products with Phosphoric acid

Phosphoric acid-free alternatives

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

How to spot Phosphoric acid on a label

Look for any of these names in the ingredient list:

Phosphoric acidE338

Related additives

Frequently asked questions

What foods contain Phosphoric acid?

In our database, Phosphoric acid most often appears in sweetened beverages, sodas, groceries and diet cola soft drink.

How many products contain Phosphoric acid?

6,950 published products on Foodmetria list Phosphoric acid, including 4,526 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.