RE: AGM Statement imminent18 Sep 2024 16:54
Physicians should caution patients about the controversy surrounding testing for food sensitivity. Recent position papers from European and American allergy and immunology societies have emphasized the limitations and potential misuse of IgG4 testing, indicating that these tests are not appropriate for making a diagnosis of food allergy.5,9 Updated guidelines for the diagnosis and management of food allergy list food-specific IgG4 measurement as an unstandardized and unproven procedure, along with other tests such as hair analysis, cytotoxicity assays or electrodermal (“Vega”) testing.1