Food Antibody Profiles

Overview

IgG4 Delayed Food Reactions – More common than you think

What is an IgG4 response?

IgG4 antibodies are associated with non-atopic or "delayed" food reactions that can worsen or contribute to many different health problems. These reactions are considered the most common form of immunologically mediated food intolerance. An IgG4 response to food is actually more common than the IgE response, which causes an immediate reaction. IgG4 acts as a blocking antibody, protecting the individual from potentially fatal IgE reactions. These reactions are more difficult to notice since they can occur hours or even days after consumption of an offending food. In some cases, a person's reaction to a food may occur several days after eating the offending food and the link between the food and their symptoms may not be connected. These "hidden" food allergies are caused by increasing blood levels of IgG4 antibodies in reaction to specific foods.

Metametrix Innovation in IgG Antibody Testing

• New patent-pending IgG4 assay allows our test to show less false positives leading to better patient compliance and limiting unecessary food elimination.
• First test to quantitate IgG4
• Eliminates non-specific binding, lowering false positives without rejecting true positives

Common offending frequently eaten foods typically hard to avoid:

• Milk
• Corn
• Wheat
• Egg
• Foods processed with molds such as black tea, breads, and fruit juices
 

Allergix^TM IgG4 Food Antibody Profiles:

IgG4 Food Antibody Profile – measures serum levels of IgG4 antibodies specific to 90 food antigens. A four-day rotation diet is included.

Bloodspot^SM IgG4 Food Antibody Profile – measures levels of IgG4 antibodies specific to 30 commonly offending foods from an easy-to-use finger stick. A four-day rotation diet is included.

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