There are two kinds of "allergies", IgE and IgG. IgE is more "anaphylactic", and IgG can be referred to as a "delayed allergy." When talking about gut sensitiv

There are two kinds of "allergies", IgE and IgG. IgE is more "anaphylactic", and IgG can be referred to as a "delayed allergy." When talking about gut sensitivity I think people are usually referring to the IgG sensitivity.