Potassium Sulphates
Also known as: E515, Potassium sulfates, potassium sulfate
E515 is authorized as a food additive at quantum satis under EU rules. Considered safe at typical use levels; potassium intake is regulated by kidneys but excessive intake can be problematic for renal patients.
What it is
Potassium sulfates (E515(i) potassium sulphate, E515(ii) potassium hydrogen sulphate) — inorganic salts used as acidity regulators or salt substitutes.
Acidity regulator, salt substitute, mineral source.
Why it's flagged
- caution in chronic kidney disease
What regulators actually say
"Potassium sulfate is generally recognized as safe."
"E515 potassium sulphates are authorised additives in the EU."
Regulatory status
United States — FDA
Potassium sulfate listed as multipurpose GRAS substance (21 CFR 184.1643)
European Union — EFSA
Authorized food additive (Reg 1129/2011)
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