• Chronic digestive symptoms: Bloating, abdominal discomfort, altered bowel habits or IBS-type symptoms where food triggers are being considered.
• Persistent skin symptoms: Eczema, rashes or acne where dietary factors may be relevant.
• Headaches or fatigue: Recurrent symptoms where delayed food reactions are being explored.
• Sinus or catarrh symptoms: Ongoing congestion, postnasal drip or phlegm where food-related patterns are being considered.
• Fluctuating mood or energy: Irritability, low mood or variable energy levels where diet may be contributing.
• Unclear symptom triggers: When symptoms fluctuate but diet history has not identified a consistent pattern.
• Structured elimination planning: Supporting a more focused dietary trial when multiple possible food triggers are suspected.

Overview

The Immuno IgG - 154 Foods test is a blood test that measures IgG antibody responses to 154 common foods. It is intended to provide a broad picture of possible delayed food-related immune reactivity.

Raised responses may help provide clinical context in individuals with ongoing digestive, skin, headache or sinus-related symptoms where food may be playing a role. The profile can be useful when reactions are not obvious, symptoms appear delayed, or there are too many possible triggers to assess from history alone.

Results are interpreted alongside diet history, symptom patterns and the overall clinical picture. The test may help guide a structured elimination or reintroduction approach where this is clinically appropriate.

Practical

Practical

This test requires a blood draw, so please ensure you can refer to a phlebotomist in the clients area before you order this test.

(Nordic Laboratories accepts no cost or claims related to any phlebotomy services in the event of sample rejection or failure for any reason. By ordering this, or any test requiring phlebotomy services, you accept any inherent risk and any associated costs.)

Specimen requirements:

Serum. Blood drawn.

Average processing time:

14 ±7 days

Research

Downloadable research

• Eliminating Immunologically-Reactive Foods from the Diet and its Effect on Body Composition and Quality of Life in Overweight Persons

Other research

• Barnes RMR Harvey MM Blears J et al, IgG Subclass of Human Serum Antibodies Reactive with Dietary Proteins, Int Archs Allergy appl. Immun, 1986.

• Cohen GA Hartman F Hamburger RN et al, Severe Anemia and chronic Bronchitis associated with a Markedly Elevated Specific IgG to Cow’s Milk Protein, Annals of Allergy, July 1985.

• Haddad, Vetter, Friedman, Samz, Brunner, Detection and kinetics of antigen-specific IgE and IgG immune complexes in food allergy, Annal of Allergy, August 1993.

• Kemeny RD Urbanek R Amlot PL et al, Sub-class of IgG in allergic disease, I IgG subclass antibodies in immediate and non-immediate food allergy, Clinical Allergy, 1986.

• Morgan JE, Daul CB, Lehrer SB, The relationships among shrimp-specific IgG subclass antibodies and immediate adverse reactions to shrimp challenge, J Allergy Clin Immunol, September 1990.

• Niggemann, B. et al, Outcome of double-blind, placebo controlled food challenge tests in 107 children with atopic dermatitis, Clin Exp Allergy, January 1999.

• Rafei A, Peters S, Harris N, and Bellani J, Food allergy and food-specific IgG measurement, Annals of Allergy, February 1989.