Food Sensitivity Test

An IgG antibody panel testing reactivity to over 200 foods and drinks across 9 categories. Identifies food-specific immune responses that may be associated with digestive discomfort, bloating, skin issues, and other delayed-onset symptoms. Results in 10 working days.

Food sensitivities differ from food allergies in their mechanism and timeline. While IgE-mediated allergies produce rapid, often dramatic reactions (hives, anaphylaxis, throat swelling), IgG-mediated sensitivities are associated with delayed-onset symptoms that can appear hours or days after consumption — making them notoriously difficult to identify through dietary observation alone. Common manifestations attributed to food sensitivities include bloating, digestive discomfort, headaches, skin flare-ups, fatigue, and joint pain. This panel measures IgG antibody levels against over 200 individual foods and beverages, organised across nine categories covering dairy, grains, meats, seafood, fruits, vegetables, nuts, spices, and drinks. Elevated IgG to a particular food does not necessarily mean it must be eliminated permanently — it indicates an immune response that may or may not be clinically relevant. Results are typically used to guide a structured elimination-and-reintroduction protocol under the guidance of a nutritionist or dietitian. The test requires a standard venous blood draw and takes approximately 15 minutes. No fasting is required. Results are delivered within 10 working days through the Randox Health app, with a detailed breakdown showing reactivity levels for each food tested. At 209 pounds, this is one of the more comprehensive food sensitivity panels available in London.