Signed in as:
filler@godaddy.com
Premium Food Intolerance Test - 200 Foods
Food Intolerance & Allergy Blood Test
With 40 years’ experience in food intolerance* and food allergy testing, and as a leading home health test provider, we work with you to optimise your diet and help take control of your health and wellbeing.
Food-Specific IgG: Antibodies Are Major Components Of The Immune System
Immunoglobulin (IgG) is a type of antibody. Antibodies are major components of the immune system. There are 4 types of IgG. In normal human blood IgG1 is the most prevalent making up 60-70% of the total IgG, followed by IgG2 (20-30%) and IgG3 (5-8%). IgG4 only consists of 1-4% of the food-specific IgG antibodies present.
FHow Accurate Is A Test For IgG4 Only?
There is a complex relationship between the four IgG subtypes. Meaningful results can only be determined by testing for all four subtypes together.
IgG1, IgG2 and IgG3 are all capable of causing inflammation which could contribute to symptoms. IgG4 antibodies are only present in low levels and its presence does not relate directly to inflammatory reactions.
Therefore, testing only for IgG4 antibodies in foods severely limits the ability to measure the breadth of reactions which means that your elimination diet may not be as effective.
The substantive YorkTest evidence base for food-specific IgG guided elimination diet supports this approach and recognises the fundamental importance of measuring IgG1-4 (total food-specific IgG) and not just IgG4 alone.