The relevance of using the C3d/immunoglobulin G test in clinical intervention.

Context: A large subset of the population is afflicted with a wide range of food-related inflammatory conditions, with at least 100 million people affected worldwide. The C3d/immunoglobulin G (IgG) test measures both the innate and adaptive responses of the immune system.

Objective: The study intended to validate the C3d/IgG test for food sensitivity for its ability to manage the symptoms of patients with intestinal and extraintestinal symptoms.