Even with a healthy diet, it's possible for your body to exhibit what's called an IgG reaction to certain foods. Unlike typical food allergies, looking at IgG reactions can single out the foods that are causing hidden immune reactions 24-72 hours after you eat. If you suspect that certain health concerns may be related to food, this at-home lab will test sensitivity levels (mild, moderate or severe) to 190 common foods. By taking this test, you will be provided with comprehensive insight on which foods to avoid in order to keep your body functioning at its best.