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At what age is IgG food allergy testing accurate?

April 26, 2017accurate age food allergy IgG Testing

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At what age is IgG food allergy testing accurate?

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The immune system is not fully developed until about 9 months of age. Beyond that age, the IgG production from food antigen presentation is active. The test will show the presence of specific food antigen presentation due to increased permeability of the small intestine.