1019 IgG Food Antibodies - Bloodspot
Performed by: Genova Diagnostics
What is the 1019 IgG Food Antibodies – Bloodspot test?
The 1019 IgG Food Antibodies – Bloodspot panel by Genova Diagnostics is a dried blood spot test designed to measure IgG antibody responses to a wide range of commonly consumed foods. It helps identify delayed immune reactions to foods, sometimes referred to as IgG-mediated food sensitivities.
Unlike immediate food allergies (IgE-mediated), which can trigger rapid symptoms like hives or anaphylaxis, IgG food reactions may develop hours to days after eating. This delay can make it difficult to connect symptoms to specific foods without testing.
The bloodspot collection method allows for convenient at-home sampling using a finger-prick blood sample.
What does this panel measure?
This panel evaluates IgG antibodies to dozens of foods across key categories, which may include:
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Dairy products
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Grains and gluten-containing foods
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Eggs
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Nuts and seeds
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Fish and shellfish
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Fruits and vegetables
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Legumes and soy
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Common additives or yeast
Elevated IgG levels to specific foods may indicate increased immune exposure or reactivity to those foods.
Why is this test ordered?
Clinicians may recommend the 1019 IgG Food Antibodies panel when patients experience chronic or unexplained symptoms that could be related to food sensitivities, such as:
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Bloating, gas, or digestive discomfort
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Headaches or migraines
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Skin issues (eczema, acne, rashes)
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Fatigue or brain fog
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Joint pain
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Sinus congestion
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IBS-like symptoms
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Inflammatory conditions
This test is often used as part of a broader functional or integrative medicine evaluation.
How to interpret results
Elevated IgG antibodies
Higher IgG levels to certain foods may suggest frequent exposure or sensitivity. Some practitioners use these results to guide temporary elimination diets followed by structured reintroduction.
Low or normal IgG antibodies
Low levels typically suggest less immune reactivity to those foods.
It is important to note that IgG antibodies can also reflect tolerance and regular exposure, not necessarily pathology. Results should always be interpreted alongside:
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Symptoms
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Diet history
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Clinical context
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Other lab markers (gut health, inflammation, etc.)
How results are used clinically
Results from the 1019 IgG Food Antibodies – Bloodspot panel are commonly used to:
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Personalize elimination diets
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Reduce inflammatory food triggers
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Support gut health protocols
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Guide reintroduction planning
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Monitor response over time
Many practitioners pair this test with stool testing, microbiome analysis, or inflammation markers for a more complete picture.
Bloodspot collection: what to expect
The dried blood spot method involves:
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Finger-prick blood collection at home
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Drops placed on a collection card
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Card mailed to the lab for analysis
This approach is convenient and requires no in-office blood draw.
Limitations to understand
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IgG testing does not diagnose food allergies
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Results do not replace clinical evaluation
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Not all elevated IgG results indicate a problem
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Best used as a guide, not a definitive diagnosis
A qualified practitioner should interpret results within the broader clinical picture.
Who might benefit from this test?
This panel may be useful for individuals with:
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Chronic digestive symptoms
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Suspected food sensitivities
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Autoimmune or inflammatory conditions
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Skin issues linked to diet
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Migraines or fatigue of unclear origin
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Ongoing symptoms despite dietary changes
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Biomarkers included in this panel:
Alfalfa
The Alfalfa marker measures IgG antibodies to proteins found in alfalfa, commonly consumed as sprouts or in certain supplements. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recogni
Learn moreAlmond
Apple
The Apple marker measures IgG antibodies to proteins found in apples. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true apple allergy. Interpretation shoul
Learn moreApricot
Asparagus
Avocado
Beef
Beets
The Beets marker measures IgG antibodies to proteins found in beets (beetroot). Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true beet allergy. Interpretat
Learn moreThe Blueberry marker measures IgG antibodies to proteins found in blueberries. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true fruit allergy. Interpretin
Learn moreBroccoli
The Buckwheat marker measures IgG antibodies to proteins found in buckwheat. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true buckwheat allergy. Interpret
Learn moreCabbage
The Cabbage marker measures IgG antibodies to proteins found in cabbage. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true cabbage allergy. Interpretation
Learn moreCane sugar
The Cane Sugar marker measures IgG antibodies to components associated with cane sugar (sucrose derived from sugarcane). Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rat
Learn moreCarrot
The Carrot marker measures IgG antibodies to proteins found in carrots. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true carrot allergy. Interpretation sh
Learn moreCasein
The Casein marker measures IgG antibodies to casein, the primary protein found in milk and dairy products. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than lacto
Learn moreCelery
The Celery marker measures IgG antibodies to proteins found in celery. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true celery allergy. Interpretation sho
Learn moreThe Cheddar Cheese marker measures IgG antibodies to proteins found in cheddar, primarily casein and whey fractions. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather
Learn moreChicken
The Chicken marker measures IgG antibodies to chicken proteins. Results are typically reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true food allergy. Interpreting the
Learn moreChocolate
The Chocolate marker measures IgG antibodies to cocoa or chocolate-containing foods. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true allergy. Interpretin
Learn moreClam
Cod
The Cod marker measures IgG antibodies to proteins found in cod. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true fish allergy. Interpretation should cons
Learn moreCoffee
The Coffee marker measures IgG antibodies to proteins found in coffee. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than caffeine sensitivity or a true coffee all
Learn moreCorn
Corn gluten
The Corn Gluten marker measures IgG antibodies to protein fractions found in corn. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than celiac disease or a true corn
Learn moreCottage cheese
The Cow’s Milk marker measures IgG antibodies to proteins found in cow’s milk, including casein and whey. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather
Learn moreCrab
The Crab marker measures IgG antibodies to proteins found in crab. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true shellfish allergy. Interpretation shou
Learn moreCranberry
The Cranberry marker measures IgG antibodies to proteins found in cranberries. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true cranberry allergy. Interpr
Learn moreCucumber
The Egg White marker measures IgG antibodies to proteins found in egg whites, such as ovalbumin and ovomucoid. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a
Learn moreEgg Yolk
The Egg Yolk marker measures IgG antibodies to proteins and lipoproteins found in egg yolk. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true egg allergy.
Learn moreGarlic
The Garlic marker measures IgG antibodies to proteins found in garlic. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true garlic allergy. Interpretation sho
Learn moreThe Gluten marker measures IgG antibodies to gluten proteins found in wheat and related grains. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a diagnosis of c
Learn moreGoat's milk
The Goat’s Milk marker measures IgG antibodies to proteins found in goat’s milk, including casein and whey fractions. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recogn
Learn moreThe Grape marker measures IgG antibodies to proteins found in grapes. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true grape allergy. Interpretation shoul
Learn moreGrapefruit
The Grapefruit marker measures IgG antibodies to proteins found in grapefruit. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true grapefruit allergy. Interp
Learn moreGreen Pepper
Kidney bean
The Kidney Bean marker measures IgG antibodies to proteins found in kidney beans. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true legume allergy. Interpr
Learn moreLactalbumin
The Lactalbumin marker measures IgG antibodies to alpha-lactalbumin, a whey protein found in milk. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than lactose intol
Learn moreLamb
The Lamb marker measures IgG antibodies to lamb proteins. Results are reported across ranges such as none detected, very low, low, moderate, or high. These categories reflect immune exposure and recognition rather than a true food allergy. Interpreti
Learn moreLemon
The Lentil marker measures IgG antibodies to proteins found in lentils. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true lentil allergy. Interpretation sh
Learn moreLettuce
Lima bean
The Lima Bean marker measures IgG antibodies to proteins found in lima beans. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true legume allergy. Interpretat
Learn moreLobster
The Lobster marker measures IgG antibodies to proteins found in lobster. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true shellfish allergy. Interpretatio
Learn moreMushroom
The Mushroom marker measures IgG antibodies to proteins found in edible mushrooms. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true mushroom allergy. Inte
Learn moreOat
The Oat marker measures IgG antibodies to proteins found in oats. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a diagnosis of celiac disease or oat allergy.
Learn moreOlive
The Olive marker measures IgG antibodies to proteins found in olives. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true olive allergy. Interpretation shoul
Learn moreOnion
The Onion marker measures IgG antibodies to proteins found in onions. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true onion allergy. Interpretation shoul
Learn moreOrange
The Orange marker measures IgG antibodies to proteins found in oranges. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true citrus allergy. Interpretation sh
Learn moreThe Oyster marker measures IgG antibodies to proteins found in oysters. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true shellfish allergy. Interpretation
Learn moreThe Papaya marker measures IgG antibodies to proteins found in papaya. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true fruit allergy. Interpretation shou
Learn morePea
Peach
Peanut
The Peanut marker measures IgG antibodies to proteins found in peanuts. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true peanut allergy. Interpretation sh
Learn morePear
The Pecan marker measures IgG antibodies to proteins found in pecans. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true tree nut allergy. Interpretation sh
Learn morePineapple
The Pineapple marker measures IgG antibodies to proteins found in pineapple. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true pineapple allergy. Interpret
Learn morePinto bean
The Pinto Bean marker measures IgG antibodies to proteins found in pinto beans. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true legume allergy. Interpret
Learn morePlum
The Plum marker measures IgG antibodies to proteins found in plums. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true plum allergy. Interpretation should c
Learn morePork
Potato, sweet
The Potato, Sweet marker measures IgG antibodies to proteins found in sweet potatoes. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true sweet potato allerg
Learn moreThe Potato, White marker measures IgG antibodies to proteins found in white potatoes. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true potato allergy. Int
Learn moreRaspberry
Red snapper
The Rice marker measures IgG antibodies to proteins found in rice. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true rice allergy. Interpretation should co
Learn moreRye
The Rye marker measures IgG antibodies to proteins found in rye. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a diagnosis of celiac disease or rye allergy. I
Learn moreSalmon
The Salmon marker measures IgG antibodies to proteins found in salmon. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true fish allergy. Interpretation shoul
Learn moreSardine
Sesame
The Sesame marker measures IgG antibodies to proteins found in sesame seeds. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true sesame allergy. Interpretati
Learn moreShrimp
Sole
Soy
The Spinach marker measures IgG antibodies to proteins found in spinach. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true spinach allergy. Interpretation
Learn moreStrawberry
The Strawberry marker measures IgG antibodies to proteins found in strawberries. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true strawberry allergy. Inte
Learn moreString bean
The String Bean marker measures IgG antibodies to proteins found in string beans (green beans). Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true green bea
Learn moreThe Sunflower Seed marker measures IgG antibodies to proteins found in sunflower seeds. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true seed allergy. Int
Learn moreTomato
The Tomato marker measures IgG antibodies to proteins found in tomatoes. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true tomato allergy. Interpretation s
Learn moreTrout
The Trout marker measures IgG antibodies to proteins found in trout. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true fish allergy. Interpretation should
Learn moreTuna
Turkey
The Turkey marker measures IgG antibodies to proteins found in turkey meat. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true poultry allergy. Interpretati
Learn moreWalnut
The Wheat marker measures IgG antibodies to proteins found in wheat. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a diagnosis of celiac disease or wheat alle
Learn moreYeast
The Yeast marker measures IgG antibodies to baker’s or brewer’s yeast. Results are typically reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true yeast allerg
Learn moreThe Yogurt marker measures IgG antibodies to proteins found in yogurt, primarily dairy proteins such as casein and whey. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rat
Learn moreZucchini
The Zucchini marker measures IgG antibodies to proteins found in zucchini. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true zucchini allergy. Interpretati
Learn more