Hair testing can be an excellent method for determining vitamin/mineral deficiency and heavy metal toxicity, however the hair sample is easily affected by environmental toxins, hair dye, shampoos and other hair products, and is therefore not the most reliable way to test for IgG mediated food allergy.
Can hair be tested for food intolerance?
That means hair is not a good measure for the current condition of the body. Regardless, there is no rationale for this test in relation to food allergies.
Are hair sample sensitivity tests accurate?
In addition, some home allergy tests may have you send in a hair sample instead of a blood sample. “Because there is no IgE in hair, results are not going to reflect a true food allergy,” Dr. Pien says.Jan 28, 2021
Is hair food sensitivity testing accurate?
There's no evidence that this can help diagnose a food allergy. In addition, hair samples don't contain IgE. Keep in mind that food allergies can be serious. It's best to make sure you get an accurate diagnosis from a doctor to avoid potentially life-threatening reactions.Nov 28, 2018