Difference between Food Intolerance and Allergy

Sometimes the immune system produces antibodies called immunoglobulin to specific foods. Depending on whether the immunoglobulins are IgG or IgE, they can cause either food intolerance or a food allergy. There are important differences in the two reactions.

Food Intolerance (IgG)

Slow onset: hours to days after eating reactive food

Reactions are usually to foods eaten most often

Chronic disease strongly associated with food intolerance

Can affect any tissue or organ in the body

Difficult to detect without testing

Food Allergy (IgE)

Rapid onset: minutes to hours after eating reactive food

Reactions are relatively rare

Is an acute reaction: usually quick and dramatic

Usually affects airways, skin or intestine

Readily apparent after eating food allergen

Difference between Food Intolerance and Allergy

On-line registration to FOODTEST 200+ food intolerance test

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What is food intolerance?

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Difference between Food Intolerance and Allergy

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What is food intolerance?

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