Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
IgG to foods usually just shows you've eaten them. Results can lead to cutting out healthy foods unnecessarily.
Why it's done
- Not recommended. For symptoms after eating, see a provider about proper testing.
Getting ready and what happens
- Talk with a provider first.
How the test is done
- A finger-prick blood sample sent to a company.
What the results mean
Better options
Allergy testing (IgE) for reactions like hives or swelling, celiac blood tests, breath tests for lactose intolerance, or a supervised elimination diet.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Related tests
Sources
Last updated 2026-11-13.