Can IgG help with Haut?

Whether IgG testing can help with skin issues is scientifically controversial. IgG antibodies are often marketed for food intolerances, but evidence linking them to skin conditions like eczema or acne is weak. IgG indicates immune exposure, not necessarily intolerance or allergy. True food allergies are mediated by IgE. Commercial IgG tests, such as those offered by MyBody-X (e.g., allergy test for foods), rely more on marketing than robust clinical validation. Skin health is multifactorial – genetics, microbiome, diet, stress. An IgG test alone does not provide a reliable basis for dietary changes. Controlled elimination diets under medical supervision or consultation with a dermatologist are more evidence-based. The evidence level is best described as 'marketing' – claims overstate the actual utility.