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How do sulfites work as additives?

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As additives, sulfites do many things:

  • They can prevent spoilage and preserve foods -- and certain beverages -- by preventing the growth of mold and bacteria, for example.
  • They can stop fruits, vegetables, and seafood from discoloring.
  • They can maintain the strength of common medications -- including some asthma drugs.

From: Asthma and Sulfite Allergies WebMD Medical Reference

SOURCES: American Academy of Allergy, Asthma, and Immunology web site: "Sulfite Sensitivity." American Medical Association, 1998. Grayson MH and Holtzman MJ, "Asthma," 2005 Monro, T.  
Essential Guide to Asthma,ACP Medicine,. , published online Aug. 6, 2012.

 

Reviewed by Dan Brennan on August 18, 2019

SOURCES: American Academy of Allergy, Asthma, and Immunology web site: "Sulfite Sensitivity." American Medical Association, 1998. Grayson MH and Holtzman MJ, "Asthma," 2005 Monro, T.  
Essential Guide to Asthma,ACP Medicine,. , published online Aug. 6, 2012.

 

Reviewed by Dan Brennan on August 18, 2019

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What foods and beverages may sulfites be added to?

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