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How can sulfites cause food intolerances?

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Sulfites can occur naturally in foods or are added to enhance crispness or prevent mold growth. In high concentrations, they sometimes pose problems for people with severe asthma. The FDA has banned sulfites as spray-on preservatives in fresh fruits and vegetables. But they're still used in some foods and are made naturally during the fermentation of wine, for example.

SOURCES:

The National Institute of Allergy and Infectious Diseases: "Fact Sheet: Food Allergy and Intolerances."  UpToDate. American Academy of Allergy Asthma & Immunology.

Reviewed by Melinda Ratini on February 18, 2020

SOURCES:

The National Institute of Allergy and Infectious Diseases: "Fact Sheet: Food Allergy and Intolerances."  UpToDate. American Academy of Allergy Asthma & Immunology.

Reviewed by Melinda Ratini on February 18, 2020

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What conditions have symptoms that are like those caused by food allergies?

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