Arrayit Corporation (ARYC)

[WebSlinger]

<< That is an outrageous claim. >>

It might sound outrageous, but it is true.

"It’s true that your body makes IgG antibodies against the foods you eat. But those IgG antibodies aren’t involved in the food allergy response: they don’t release histamine, they don’t cause anaphylaxis, and (as far as anyone can tell, at least), they don’t cause any other actual allergic responses. They aren’t consistently associated with any chronic food allergy symptoms. Plenty of healthy people with no allergy symptoms test positive for IgG antibodies to all kinds of foods. And some people with life-threatening allergy symptoms test negative on IgG tests for that food.

It’s very common for people to go and get an IgG test and then freak out because the test shows they’re producing IgG antibodies to a huge number of different foods. But this doesn’t mean they’re actually allergic to any of those foods. It just means they’ve been eating those foods. IgG testing can’t tell you what foods you are or aren’t reacting to. There’s no reason to panic based on those tests – there’s no real reason to take them at all, because they’re measuring something totally irrelevant to allergy symptoms."

https://paleoleap.com/what-kind-allergy-testing-is-reliable/

A test that claims to be able to diagnose food sensitivities and is commonly available is the food IgG test. This test, offered by various companies, reports IgG levels to multiple foods (usually 90 to 100 foods with a single panel test) claiming that removal of foods with high IgG levels can lead to improvement in multiple symptoms. Some websites even report that diets utilizing this test can help with symptoms of irritable bowel syndrome, autism, cystic fibrosis, rheumatoid arthritis and epilepsy.

It is important to understand that this test has never been scientifically proven to be able to accomplish what it reports to do. The scientific studies that are provided to support the use of this test are often out of date, in non-reputable journals and many have not even used the IgG test in question. The presence of IgG is likely a normal response of the immune system to exposure to food. In fact, higher levels of IgG4 to foods may simply be associated with tolerance to those foods.

Due to the lack of evidence to support its use, many organizations, including the American Academy of Allergy, Asthma & Immunology, the Canadian Society of Allergy and Clinical Immunology and the European Academy of Allergy and Clinical Immunology have recommended against using IgG testing to diagnose food allergies or food intolerances / sensitivities.

https://www.aaaai.org/conditions-and-treatments/library/allergy-library/IgG-food-test

<< If that were the case, then why take that test, if it actually doesn't work. >>

That is an excellent question...