A member asked:

Go into an asthma attack when i eat sulfer dioxide. what does this mean?

A doctor has provided 1 answer
Dr. John Chiu answered

Smog: I believe you are referring to metabisulfite often used as a preservative. This emits sulfur dioxide which is akin to inhaling an important component of smog leading to asthma attacks for susceptible individuals. The intensity of response varies from person to person.

Answered 3/7/2015

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