Back to Biomarkers
Coffee (f221) IgG4 details
What Coffee (f221) IgG4 shows
This test measures IgG4 antibodies to coffee. IgG4 is a subclass of IgG antibodies that the immune system often produces to foods you eat regularly, and some practitioners use food IgG4 panels to look at your immune response to your diet. A higher result generally means you have been exposed to coffee, often through regular drinking, while a low result may reflect little recent intake. Food IgG4 reflects exposure and tolerance rather than allergy, its link to symptoms is debated, and it is not a test for a true food allergy, which is assessed with IgE.
Tests that include Coffee (f221) IgG4
This panel tests for specific IgG4 antibodies to 16 foods.
Biomarkers
- Banana (f92) IgG4 Measures IgG4 antibodies to banana, which mainly reflect that you have eaten it; their link to food-related symptoms is debated.
- Broccoli (f260) IgG4 Measures IgG4 antibodies to broccoli as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Cabbage (f216) IgG4 Measures IgG4 antibodies to cabbage as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Cauliflower (f291) IgG4 Measures IgG4 antibodies to cauliflower as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Clam (f207) IgG4 Measures IgG4 antibodies to clam as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Coffee (f221) IgG4 Measures IgG4 antibodies to coffee as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Cucumber (f244) IgG4 Measures IgG4 antibodies to cucumber, which reflect exposure to this food; how food IgG4 relates to symptoms is debated.
- Grape (f259) IgG Measures IgG antibodies to grape, reported on a food IgG4 panel, as a marker of dietary exposure whose link to symptoms is debated.
- Grapefruit (f209) IgG4 Measures IgG4 antibodies to grapefruit, a marker of dietary exposure to this citrus fruit whose link to food-related symptoms is debated.
- Green Bean (f315) IgG4 Measures IgG4 antibodies to green beans, a marker of dietary exposure to this vegetable whose link to food-related symptoms is debated.
- Haddock (f42) IgG4 Measures IgG4 antibodies to haddock, a marker of dietary exposure to this fish whose link to food-related symptoms is debated.
- Halibut (f303) IgG4 Measures IgG4 antibodies to halibut, a marker of dietary exposure to this fish whose link to food-related symptoms is debated.
- Lemon (f208) IgG4 Measures IgG4 antibodies to lemon, which reflect exposure to lemon in your diet; their link to food-related symptoms is debated.
- Melons: Honeydew, Musk, Cantaloupe IgG4 Measures IgG4 antibodies to melons (honeydew, muskmelon and cantaloupe), which mainly reflect that you have eaten this food; their link to food-related symptoms is debated.
- Mushroom (f212) IgG4 Measures IgG4 antibodies to mushroom, which mainly reflect that you have eaten this food; their link to food-related symptoms is debated.
- Oyster (f290) IgG4 Measures IgG4 antibodies to oyster, which mainly reflect that you have eaten this food; their link to food-related symptoms is debated.
This panel tests for specific IgG4 antibodies to 9 foods.
Biomarkers
- Cashew (f202) IgG4 Measures IgG4 antibodies to cashew as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Celery (f85) IgG4 Measures IgG4 antibodies to celery as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Coffee (f221) IgG4 Measures IgG4 antibodies to coffee as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Crab (f23) IgG4 Measures IgG4 antibodies to crab, which reflect exposure to this shellfish; how food IgG4 relates to symptoms is debated.
- Flounder (f147) IgG4 Measures IgG4 antibodies to flounder, a marker of dietary exposure to this fish whose link to food-related symptoms is debated.
- Kiwi (f84) IgG4 Measures IgG4 antibodies to kiwi fruit, which reflect exposure to kiwi in your diet; their link to food-related symptoms is debated.
- Lamb (f88) IgG4 Measures IgG4 antibodies to lamb, which reflect exposure to lamb in your diet; their link to food-related symptoms is debated.
- Pecan (f201) IgG4 Measures IgG4 antibodies to pecan, which mainly reflect that you have eaten this food; their link to food-related symptoms is debated.
- Salmon (f41) IgG4 Measures IgG4 antibodies to salmon, which reflect your immune system's exposure to this fish; their link to food symptoms is debated.
ConsultationsConsultation
Not sure how to read your results? We can help.
Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.
Book a specialist