Before paying for a broad food-sensitivity panel.
A report with a long list of foods can feel more definite than a conversation about symptoms. Each item has a result beside it. The temptation is to treat that list as…
A report with a long list of foods can feel more definite than a conversation about symptoms. Each item has a result beside it. The temptation is to treat that list as instructions for what you should stop eating.
First, ask what the test can actually establish.
A result needs an interpretation
The American Academy of Allergy, Asthma & Immunology recommends against using food IgG panels to diagnose food allergy or intolerance. IgG can reflect normal exposure to a food, and a higher result does not, by itself, establish a harmful reaction. [1]
That matters when an article recommends removing several everyday ingredients after broad testing. A laboratory number can be real while the conclusion drawn from it is unsupported.
Keep your concern on the table
This is not a reason to dismiss symptoms. Ask the clinician what condition they are investigating, whether the test is validated for it, and what a positive or negative result would change.
If a restriction is needed, ask what replaces the food and how the plan will be reviewed. Do not use a general article to change prescribed treatment for an autoimmune condition.
Some diagnosed conditions genuinely require specific food avoidance. A broad sensitivity panel is not a substitute for establishing which condition you have.
A useful next step may be a clearer question, rather than another food removed from dinner. You deserve advice that explains the link between the test, the symptom and the proposed change.
Sources, evidence and limits
Evidence basis: AAAAI patient guidance on IgG panels read in full. It directly contradicts the original article’s recommendation to investigate hidden food allergies using IgG testing. No assessment of the original nine-part autoimmune programme as a tested intervention.
Least certain: Cause of individual symptoms and which targeted investigation is appropriate.
Contrary evidence and context: Genuine food allergies, coeliac disease and some other conditions require specific assessment and avoidance. Rejecting IgG panel interpretation does not negate these conditions or every useful laboratory test.
What would change the conclusion: A validated test for a specific suspected condition, or a confirmed diagnosis, changes the appropriate dietary advice.
Reading behind this piece
Topic inspiration: 9 Lifestyle Changes I Always Recommend To Patients With Autoimmune Diseases — Dr. Mark Hyman, 2016-04-25. Full archived article body read, including the ending; not a newsletter-only reading.
Original wording for Everyday. A focused evidence check, not a systematic review.