E223
E223: Sodium metabisulphite
Moderate concernFunction: preservative
What is E223?
E223 (Sodium metabisulphite) is a preservative used in processed foods.
What the research says
Can trigger asthma-like reactions in sensitive people. In the EU it must be declared as an allergen above 10 mg per kg.
Regulatory status
| European Union | Approved |
|---|---|
| United States | Approved |
Questions people ask
Is E223 (Sodium metabisulphite) safe?
Can trigger asthma-like reactions in sensitive people. In the EU it must be declared as an allergen above 10 mg per kg.
Why is E223 added to food?
It is used as a preservative.
Does E223 make a food ultra-processed?
Not on its own. E223 is not one of the cosmetic additives the NOVA system uses to identify ultra-processed foods.