An elimination diet is the gold standard for identifying food sensitivities. The basic premise is to remove an item from your diet for 3-4 weeks, reintroduce it and observe the effects. If the reintroduction increases symptoms, the food should be kept out of your diet at least for the short-term. It is important to reintroduce items one at a time (e.g., butter as butter not as a component in a wheat-flour-based cake) and in a quantity significant enough to cause a reaction (a few servings). Here is an example symptom tracker from the Institute for Functional Medicine (IFM). Lab Tests and Food Sensitivities There are lab tests to determine food sensitivities (e.g., IgG antibody testing), but there are limitations of them based on the test itself, as well as how the food is prepared, processed, and/or how frequently it is consumed by the individual (1,2). In addition, there are potentially...
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