- a food allergy "is an immune system response. It occurs when the body mistakes an ingredient in food -- usually a protein -- as harmful and creates a defense system (antibodies) to fight it. Food allergy symptoms develop when the antibodies are battling the "invading" food. The most common food allergies are peanuts, tree nuts (such as walnuts, pecans and almonds), fish, and shellfish, milk, eggs, soy products, and wheat."
- A food intolerance on the other hand is "a digestive system response rather than an immune system response. It occurs when something in a food irritates a person's digestive system or when a person is unable to properly digest or breakdown, the food. Intolerance to lactose, which is found in milk and other dairy products, is the most common food intolerance."
"accurately and objectively measure leukocyte cellular reactivity in whole blood, which is a final common pathway of all mechanisms. The test utilizes electronic, state of the art, hematological instrumentation. Standard allergy tests, such as skin testing or RAST are not accurate for delayed type reactions to foods and chemicals. They measure only a single mechanism, such as the effect of mast cell release of histamine or the presence of allergen specific IgE molecules. Delayed reactions to foods and chemicals are NOT IgE mediated.
The ALCAT Test also differs from standard IgG tests in that they rely exclusively on one immune pathway, serum levels of immunoglobulin G (IgG). In fact, high food specific IgG titers are indicative only of exposure, not necessarily intolerance.
The ALCAT Test reproducibly measures the final common pathway of all pathogenic mechanism; whether immune, non-immune, or toxic. It is the only test shown to correlate with clinical symptoms by double blind oral challenges, the gold standard."
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