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11 Food Additives and Preservatives to Avoid

6. Sodium sulfite

This is a preservative used in wine making as well as in other processed foods. Sulfites are additives that help preserve freshness in foods and are added to meats to retain color.

Sulfite sensitivity is also an issue for some people, most of whom have been observed to be asthmatic. When consumed by sulfite sensitive individuals, this preservative can trigger headaches, respiratory complications and rashes. In really severe cases, the sulphites can actually close down airway passages completely and cause cardiac arrest.

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