| Numerous external factors cloud the controversial food allergy tests by incorrectly labelling food intolerance (non-immunological) as an allergy (immunologically mediated). The classical, rapid Type I allergic reaction, which is IgE mediated and tested conventionally with the Patch and Skin prick test, Radioallergoabsorbent (RAST) Test, Type III, IgG mediated tests (FAST & ELIZA) are unreliable due to false negative and positive reactions, hence the rise of numerous "alternative" methods that will be discussed below. |