Can Sodium Metabisulfite Cause Cancer?
Sodium metabisulfite is a chemical commonly used as a preservative and antioxidant in food, wine, and some medications. Concerns sometimes arise about its safety, including whether it can cause cancer.
Current Scientific Evidence
- There is no strong evidence from scientific research that sodium metabisulfite itself causes cancer in humans.
- Most regulatory bodies, including the U.S. Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA), classify it as “Generally Recognized As Safe” (GRAS) when used at approved levels.
- Some studies in animals have raised concerns about very high exposure, but these levels are much higher than what humans would encounter in foods or products.
- Sodium metabisulfite can cause allergic reactions and asthma symptoms in sensitive individuals; however, these are not related to cancer risk.
Conclusion
Based on current knowledge, sodium metabisulfite is not considered a carcinogen (cancer-causing substance) when used within recommended limits. As with any food additive, it is important to use it as directed and consult health authorities if you have concerns.
If you have specific health conditions (such as asthma or sulfite sensitivity), you should discuss your diet with a healthcare professional.
