RE: Welcome to all new investors9 Jul 2024 18:37
IgG is a protein in the blood that functions as an antibody. These commerical tests look for IgG4 for many food groups in the blood. If a result is positive, it is advised that you remove that food from the diet.
There is no strong evidence that these tests accurately identify a food intolerance. In fact, allergy doctors have investigated these tests and they have shown that you’re more likely to be told you have a positive food intolerance to a food you consumer regularly, not one you’re intolerant too.
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copy n pasted from guts charity org uk
this is the problem with these type of tests - i have found no official bodies who are recommending them