While it is clear that IgG antibodies do not
themselves provoke reactions in food allergic patients, it remains a
possibility that they are nevertheless influential immunologically.
Of interest in this context is the fact that there is no clear correlation
between the levels of allergen specific IgE antibody and clinical
responsiveness. Whereas high concentrations of IgE antibody can
predict clinical reactivity (Sampson and Ho, 1997; Sampson, 2001),