Cotton Seed IgG4 details

Cottonseed protein can be found in some processed foods, and refined cottonseed oil is common in cooking, though refining removes most of the protein. This test measures IgG4 antibodies to cottonseed, a subclass of IgG antibodies the body makes after repeated exposure to a protein. A higher level generally shows that your immune system has encountered cottonseed, and IgG4 is often seen as a sign of tolerance rather than allergy. Food IgG reflects exposure to a food your immune system has encountered, and its link to symptoms is debated, so a result should not be used on its own to diagnose food allergy or intolerance or to remove foods from your diet.