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Your Guide to the Most Common Food Allergies

Peanuts are a common food allergy.Food allergies are a sensitivity to certain foods that may include tingling, swelling, hives, breathing issues, and stomach illness. These allergies may be expressed mildly to severely in each individual, and can be deadly. They are caused by the body's immune system mistaking particular food proteins as harmful, causing an allergic reaction, and may be tested for and treated with the help of a doctor, although they cannot be eliminated. Allergies are different from food intolerance, in that intolerance usually only affects digestion.

There are several common food allergies suffered by millions of people, including nuts, fish and shellfish, gluten (wheat), and eggs. For more about common food allergies, and how to deal with them, read the guides below.

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