Sodium Metabisulphite: Nutrition, Pros & Cons
Sodium Metabisulphite (E223) is a widely used food preservative and antioxidant regulated by the FSSAI. It is commonly added to dried fruits, processed vegetables, and beverages to prevent microbial growth and enzymatic browning, though it requires caution for individuals with sulfite sensitivities.
Pros
- Acts as an effective antimicrobial agent and preservative, extending the shelf-life of processed foods under regulatory limits. [FSSAI]
- Serves as an antioxidant to inhibit enzymatic browning, preserving the visual appeal and color of dried fruits and vegetable products. [FSSAI]
Cons
- Can trigger hypersensitivity and respiratory distress (such as bronchospasms) in sulfite-sensitive individuals and those with asthma. [PubMed]
- May cause gastrointestinal irritation or mild digestive distress in highly sensitive individuals. [PubMed]
Key nutrients
- Sodium — Contributes to dietary sodium intake, although the amounts consumed via food additives are typically very small.