Do I need a food sensitivity test?
Almost certainly not. The IgG food panels sold directly to consumers are not recommended by any major allergy organisation — IgG antibodies to food indicate exposure, not intolerance. They typically flag a long list of foods you eat often, which is what produces the apparent insight.
What the test measures
IgG antibodies to a food are a normal response to having eaten it. Their presence reflects exposure and, in some readings of the evidence, tolerance — close to the opposite of what the reports claim.
The major allergy and immunology societies advise against using these panels for diagnosis. The practical result is a list of common staples, an unnecessarily restricted diet, and sometimes a genuine nutritional gap.
What is worth testing
True IgE-mediated food allergy, which is a different test entirely and appropriate when there are allergic symptoms — hives, swelling, breathing difficulty. Coeliac serology before removing gluten, because the test is unreliable once you have already stopped eating it. Lactose intolerance via breath testing where symptoms suggest it.
Each of these answers a specific clinical question rather than producing a list.
What actually works for vague symptoms
A structured elimination and reintroduction, done properly: remove a small number of suspected foods for two to four weeks, then reintroduce them one at a time with a gap between, recording symptoms. It takes longer than a blood test and tells you something real.
Bloating, fatigue and brain fog have a long list of causes that are not food intolerance — sleep, fibre, alcohol, stress, thyroid and iron among them. A panel and a consultation cover more ground than a sensitivity test.
General information, not medical advice, and not a substitute for seeing a clinician who can assess you. Cryohealthcare Marina del Rey is a wellness practice; our treatments are not medical treatments and do not treat medical disease. We do not sell peptides or prescription medication from this website.
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