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The sugar-coated proteins that develop during the fermentation process are the same that set off common allergic reactions.
About 5 percent of foods with warning labels had traces of allergens, compared to 2 percent of foods without labels.
If your cat has allergies, here are some expert tips for helping them survive allergy season.
An increase in allergy sufferers since 1980 is linked to a corresponding rise in use of antibacterial soap and other germ-killing methods.
Video: Dr. Roshini Raj offers advice for combating the painful symptoms associated with spring allergies and explains how to reduce your contact with pollen, grass and ragweed.
The forecast calls for earlier and longer hay fever seasons.
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Author of parenting books blogs about raising children and health issues.