Barley (f6) IgG4 details
What Barley (f6) IgG4 shows
Barley is a cereal grain used in soups, breakfast cereals, malt, beer and many processed foods. This test measures IgG4, a subclass of IgG antibodies, to barley proteins in your blood. Unlike IgE, which drives classic food allergy, IgG4 to foods is common in healthy people and tends to rise with regular eating, so it mainly reflects exposure. A higher result usually means you eat barley often. Whether food IgG4 explains symptoms such as bloating or headaches is debated, and major allergy organizations do not recommend it for diagnosing food intolerance. It does not show a food allergy.
Tests that include Barley (f6) IgG4
This panel tests for specific IgG4 antibodies to 9 foods.
- Almond (f20) IgG4 Measures IgG4 antibodies to almond, which mainly reflect that you have eaten it; their link to food-related symptoms is debated.
- Barley (f6) IgG4 Measures IgG4 antibodies to barley, which mainly reflect that you have eaten it; their link to food-related symptoms is debated.
- Carrot (f31) IgG4 Measures IgG4 antibodies to carrot as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Codfish (f3) IgG4 Measures IgG4 antibodies to codfish as part of a food panel; food IgG4 mainly reflects exposure, and its link to symptoms is debated.
- Cotton Seed IgG4 Measures IgG4 antibodies to cottonseed, which reflect exposure to this food protein; how food IgG4 relates to symptoms is debated.
- Garlic (f47) IgG4 Measures IgG4 antibodies to garlic, a marker of dietary exposure whose link to food-related symptoms is debated.
- Mango (f91) IgG4 Measures IgG4 antibodies to mango, which mainly reflect that you have eaten this food; their link to food-related symptoms is debated.
- Sole (f337) IgG4 Measures IgG4 antibodies to sole, which reflect your immune system's exposure to this fish; their link to food symptoms is debated.
- Yeast (Saccharomyces spp.) IgG4 Measures IgG4 antibodies to Saccharomyces yeast found in bread, beer and fermented foods, which mainly reflect exposure; their link to symptoms is debated.
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