Food Sensitivities Testing & Food Intolerances Testing are done through blood work. There are multiple food panels you can choose from depending on your diet (vegan vs. non vegan). This is an individualized assessment tool to determine which foods cause inflammation and immune reactions in your body.
There are food allergies, food sensitivities and food intolerances – How do you know which one is which and which one you have? IgG testing and IgE testing, these are antibodies known as immunoglobulins. They attach to different antigens known as allergens. The attachment is the same as the one between our immune system (antibodies) and different bacteria and viruses. After they attach, depending on the immunoglobulin type, they form a cascade of reactions which will translate into different symptoms.
IgE immune reaction causes symptoms of true allergies such as hives, red eyes, sneezing, congestion, tight throat etc. This is your immediate allergic reaction, kind of like the classic allergy symptoms or anaphylactic shock.
Most food sensitivities are actually delayed reactions of the immune system, caused by IgG antibodies. They attach themselves to different foods and form a complex that causes a set of symptoms typically a few hours after eating the food. This complex starts an immune response and increases inflammation, making you feel all kinds of symptoms such as bloating, gas, diarrhea, brain fog etc.