Foods Containing E521 (Aluminium Sodium Sulphate)
E521 (Aluminium Sodium Sulphate) is a anti caking agent (mineral) used in table salt, icing sugar. Here are the foods where you'll find it on the label.
Common foods that contain E521
- table salt
- icing sugar
- dried soups
- baking powder
- powdered drinks
- seasoning mixes
In the UK and EU, E521 must be declared either as "E521" or as "Aluminium Sodium Sulphate" in the ingredients list.
Is E521 safe?
E521 is authorised in the EU and UK but carries genuine concerns. For most people consuming Aluminium Sodium Sulphate in typical quantities, health effects are unlikely — but the caution flag reflects either active scientific debate, mandatory warning labels, allergen status, or conditions attached to its authorisation.
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Reduce or replace E521
Products relevant to E521 and your dietary choices
Food Sensitivity Test
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Additive-Free Cookbook
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Food Sensitivity Diary
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Data: Open Food Facts (ODbL) · EFSA