Between two and five percent of the American population has some sort of food allergy. This is caused when our immune system reacts to substances in the foods that we eat. We call these substances allergens. This may result from overexposure to a certain food, or it may result from a one-time exposure. Food allergies are common in children under age three. These allergies often resolve by age six. Or, they may recur intermittently throughout life. Food allergies may result in mild to severe symptoms, such as:
* rash or hives,
* swelling of the lips, tongue, face and throat,
* runny nose and sneezing,
* wheezing and shortness of breath, or
* headache.

These reactions are usually mild, but may rarely be serious. Most people with food allergies react to one or just a few foods. This makes it possible to avoid the problem foods and to eat a normal diet. Looking for substitutes such as rice flour bread instead of wheat bread, or soy milk for cow's milk will help us to maintain a safe and satisfying diet.

There are certain foods, such as peanuts which can trigger serious anaphylatic shock. This only takes a small exposure. It is very important for those with such extreme allergies to be careful of hidden peanut products such as peanut oil. For most of us with food allergies, they are only a mild inconvenience.

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