What are the most frequently cited safety concerns regarding sodium benzoate?

The primary safety concern associated with sodium benzoate is its potential to react with ascorbic acid (vitamin C) in acidic beverages to form benzene, a recognized human carcinogen. This reaction is more likely to occur under conditions of heat, light, and long-term storage, which has led to widespread attention from both consumers and formulators regarding risk control and mitigation strategies. In addition, combined intake of sodium benzoate with certain artificial colors has been epidemiologically linked to increased hyperactivity-related behaviors in children, as reported in the Southampton study, further fueling public and regulatory concern over its neurological safety in sensitive populations such as kids.

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