Dr. Joel Evans – you probably know him as long-time IFM faculty teaching in the Advanced Practice Hormone Module. He’s also donned a newish hat as KBMO’s Medical Director. Dr. Evans loves the FIT test for delayed hypersensitivities to foods, and states that the addition of complement fragment C3d to their test significantly reduced the incidence of false positive results found on standard IgG testing.
Food sensitivities and related diseases affect at least 100 million people worldwide and cause a wide variety of illnesses ranging from skin rashes and headaches to chronic intestinal diseases. The commonness of food sensitivities has increased by more than 50% in adults and children in recent years
In general, I am a fan of IgG food sensitivity testing. While we can in some cases manage just fine using a standard elimination and challenge protocol, IgG testing can benefit patients in a few ways, such as: providing motivating data, individualizing the foods needing to be removed and identify less-common antigenic foods.