What is Celery and Why Does the Food Zoomer Test for It?

Vegetable-derived food antigen

Celery represents the plant proteins and peptides found in Apium species that can be recognized by the immune system. Measuring IgA and IgG responses to celery helps reveal whether immune activity is focused at the gut lining (mucosal) or more systemic, which can clarify dietary patterns linked to digestive, skin, or inflammatory complaints.

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Celery

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About Celery

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About Celery

Overview and History

Celery (Apium graveolens) is a member of the Apiaceae family and contains a mix of proteins, small peptides, lectins, and other plant-derived molecules. From a biochemical perspective, these components act in plant structure, growth and defense and can be presented to the human immune system as distinct antigenic targets. Clinical interest in celery stems from its common dietary use and the fact that certain celery proteins are frequently recognized by the immune system in exposed individuals. Testing at the protein- and peptide-level lets laboratories identify which specific celery components are engaged by antibodies, and can help flag potential cross-reactivity with related plant proteins or pollens in some people.

Interpreting Highs and Lows

Elevated IgA or IgG responses to celery suggest prior immune exposure and recognition of celery proteins; IgA elevations point toward mucosal or gut-associated immune activity, while IgG elevations reflect broader systemic antibody response. Such elevations can reflect repeated exposure, sensitization, or cross-reactivity with similar plant proteins, but do not by themselves indicate a specific diagnosis. Low or absent responses usually indicate limited immune recognition, tolerance, or low recent exposure to celery proteins. Any single celery result should be interpreted alongside other Food Zoomer markers (IgA/IgG patterns across foods and peptides), clinical history, and symptoms to form a meaningful picture.

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Celery is included in Food Zoomer to measure IgA and IgG reactivity to its proteins and peptides, providing peptide-level detail and helping detect possible cross-reactivity with related plant or pollen proteins. This information contributes to pattern-based interpretation and supports more precise dietary planning when combined with other panel domains.

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Celery FAQs

What is Celery and why is it important?

The celery biomarker measures immune responses to proteins and peptides from the celery plant. It’s important because those immune signals can show whether your body recognizes celery as an exposed protein source, which may relate to digestion, skin reactions, or inflammatory patterns when viewed with other test results. Knowing this can help providers spot clustered food reactivity in the broader Food Zoomer profile.

What does it mean if my Celery levels are low?

Low celery levels generally mean there’s little measurable IgA or IgG response to celery proteins—suggesting limited immune recognition or recent exposure. In contrast, higher levels indicate immune recognition or sensitization. Interpretation depends on whether IgA or IgG is elevated and on patterns across other foods and peptides in the full panel.

What does it mean if my Celery levels are high?

High levels indicate that your immune system has formed measurable IgA and/or IgG antibodies to celery proteins. IgA-predominant elevations point to mucosal or gut-associated activity, while IgG elevations reflect systemic antibody response; both should be interpreted in the context of other panel results, exposure history, and symptoms to understand their clinical relevance.

Why is Celery included in the Food Zoomer?

Celery is a common dietary item with proteins that can be specifically measured to identify immune recognition and potential cross-reactivity with related plant or pollen proteins. Including celery helps providers detect clustered reactivity across vegetables and additives, refining pattern-based interpretation and supporting more personalized dietary decision-making.

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