Q: I am allergic to potassium sorbate and get hives and diarrhea from it. It seems to be harder and harder to find foods without it. It's in candy now, too, and cake mix. Why the change from natural preservatives?— B. M., DelawareA: The change from natural preservatives in processed foods is decades old.Potassium sorbate, which is the potassium salt of sorbic acid, has been used for many years in commercially prepared foods. The chemical does occur naturally; however, a synthetic [...]
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