Sodium Metabisulfite


Potentially Harmful
Sodium Metabisulfite is a white powder preservative used in foods and pharmaceuticals. Sulphites are used to prevent the browning of foods, as bleaching agents, as dough conditioning agents, to prevent excess alkalinity of foods, as food processing aids, color stabilizers and antioxidants.
Health Impact
Many of the acute health effects include irritation to the nose, throat, and lungs which can cause coughing, wheezing, and shortness of breath. Chronic health effects include asthma-like allergies, chest tightness, development of bronchitis (symptoms like cough, phlegm, and shortness of breath). Exposure to sulphites (commonly through consumption of food and drink) has been reported to induce clinical effects in sensitive individuals, ranging from dermatitis, urticaria, flushing, hypotension, abdominal pain and diarrhea to life-threatening anaphylactic and asthmatic reactions.
Adverse reactions to the sulphite additives
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