Article: Food allergies: real or imagined? What symptoms really mean.

Howard, a healthy 65-year-old retiree, develops a nasty rash each time he eats shellfish.

Cheryl, a 25-year-old nutritionist, experiences gas, bloating and diarrhea whenever she eats milk, cheese or ice cream.

Suzanne, a 30-year-old nurse, says she avoids artifical sweeteners and sulfites, a food preservative found in some wines and vegetables, because they trigger her migraine headaches.

Evan, a 40-year-old self-confessed hypochondriac, breaks out in hives even at the smell of chocolate.

Each of these people believes he or she suffers from food allergies. But true food allergies are not as common as you might think. In fact, as many ...

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