About FoodSensitivity.com
Food sensitivity information you can understand
FoodSensitivity.com is an educational guide to food sensitivity, food-related symptoms, and testing options. We help you understand the differences between food reactions before you evaluate a test or a provider.
What does food sensitivity mean?
People often search for “food sensitivity” when they notice bloating, digestive discomfort, a rash, headaches, or tiredness around meals. These symptoms can have many causes, and timing alone does not show that a food is responsible.
Food sensitivity is not one clearly defined diagnosis. Food intolerance, food allergy, and celiac disease are different conditions with different evaluations. Food-specific IgG is an antibody measurement, not a diagnosis of any of these conditions.
Learn about symptoms before choosing a food sensitivity test
A useful starting point is a record of what you ate, when symptoms happened, and what else was going on. A clinician can use your history to decide whether to evaluate an allergy, celiac disease, lactose intolerance, or another cause.
There is no single test that answers every question about food reactions. Our guides explain what different tests measure, how samples are collected, and which questions to ask before choosing a test.
What food IgG testing can and cannot tell you
Food-specific IgG often reflects exposure to foods. The American Academy of Allergy, Asthma & Immunology recommends against using food IgG tests to diagnose food allergy, intolerance, or sensitivity. An elevated value is not proof that a food causes symptoms, and a low value does not establish safety for someone with a known allergy.
We explain ELISA and microarray laboratory methods without treating either method as proof of a better diagnosis. Measuring many targets from a small sample is a technical feature, not evidence that a test explains symptoms.
How we source our food sensitivity information
We separate medical guidance from manufacturer descriptions. Clinical explanations link to sources such as the American Academy of Allergy, Asthma & Immunology and the National Institute of Diabetes and Digestive and Kidney Diseases.
Provider comparisons report specific, dated manufacturer statements about assay method, collection, panel size, reports, support, and laboratory credentials. We mark details that a reviewed page does not specify rather than guess. Laboratory credentials and evidence that a test explains symptoms are separate questions.
Find practical answers to your next question
Use our general FAQ for common questions, or search the resource library for original articles on food diaries, lactose intolerance versus milk allergy, panel sizes, laboratory credentials, and preparing for a consultation.
This website provides educational information, not personal medical advice. Talk with a clinician about persistent symptoms and before making dietary changes.