Is Sodium Metabisulfite Bad for Health?

Sodium metabisulfite is a chemical compound commonly used as a preservative and antioxidant in food, beverages, and some pharmaceuticals. It is known as E223 in food additives.

Possible Health Effects

• Generally Recognized as Safe (GRAS): In small amounts, sodium metabisulfite is considered safe for most people by regulatory agencies like the FDA and EFSA.
• Allergic Reactions: Some individuals, especially those with asthma or sulfite sensitivity, may experience allergic symptoms such as headaches, rashes, or wheezing when exposed to sodium metabisulfite.
• Asthma Risk: People with asthma are more likely to react adversely to sulfites. Symptoms can include difficulty breathing or an asthma attack.
• Digestive Issues: Large amounts may cause nausea, stomach pain, or diarrhea in sensitive individuals.
• Occupational Hazards: Inhaling sodium metabisulfite powder (for example, in industrial settings) can cause irritation to the eyes, nose, and respiratory tract.

Safe Consumption

• Regulatory agencies set safe limits for sodium metabisulfite in foods and drinks.
• If you suspect sulfite sensitivity, check food labels or consult with a healthcare provider.

Conclusion

For most people, sodium metabisulfite in food is not harmful when consumed within recommended limits. However, those with asthma or sulfite allergies should avoid it when possible.