E224
Potassium Metabisulphite
Preservative
Sulphite preservative similar to E223. Used in wine and beer production.
Found in
Wine, Beer, Cider
Daily intake limit
0-0.7 mg/kg bw
Body systems affected
Respiratory
Can trigger severe asthma attacks — one of 14 mandatory EU allergens
Immune
Can cause anaphylaxis in sulfite-sensitive individuals
Digestive
High doses may cause nausea and digestive upset
What the research says
Research on Potassium Metabisulphite (E224) is ongoing. Regulatory agencies have evaluated its safety for permitted uses.
Allergenic potential: Very high — mandatory EU allergen labelling required
Metabolic effects: Destroys thiamine (Vitamin B1)
FDA Permitted
EFSA Approved
WHO Evaluated
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