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

Brassica-derived food antigen

Turnip is a plant-derived antigen representing proteins and peptides from Brassica vegetables. Measuring IgA and IgG responses to Turnip helps show whether the immune system recognizes these components at the gut mucosa or systemically, adding context to food-related immune patterns.

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Turnip

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About Turnip

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About Turnip

Overview and History

In the Food Zoomer context, Turnip refers to a group of proteins and peptides derived from Brassica rapa and related cruciferous vegetables. Biochemically these include storage proteins (such as cruciferins and napins), enzyme-associated proteins like myrosinase-related fragments, and lectin-like components that can interact with mucosal tissues. Food-derived antigens like those from turnip have been studied for their ability to elicit mucosal and systemic antibody responses. Mapping antibody recognition at the protein and peptide level increases resolution in immune testing and helps distinguish which food families—rather than whole-food categories alone—are linked to measurable immune activity.

Interpreting Highs and Lows

Elevated Turnip-specific IgA or IgG signals may reflect recent or repeated exposure to Brassica proteins, or immune recognition that cross-reacts with related vegetables. IgA-predominant elevation suggests mucosal (gut) immune engagement, while IgG-predominant elevation points to broader systemic recognition. Low or absent Turnip responses commonly indicate low exposure, oral tolerance, or lack of immune recognition; interpreting either high or low levels is most informative when viewed alongside the full Food Zoomer profile and clinical context.

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Turnip is included to measure antibody responses to cruciferous vegetable proteins at both mucosal and systemic levels. Its peptide-level data help identify clustering of reactivity within the Brassica family and refine personalized dietary planning within the broader Food Zoomer report.

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Turnip FAQs

What is Turnip and why is it important?

In this test, Turnip represents proteins from Brassica vegetables that the immune system may recognize. Testing for antibodies against these proteins helps reveal whether your immune system has been exposed to or is responding to cruciferous components. That information can help providers understand patterns across food groups when combined with other Food Zoomer results.

What does it mean if my Turnip levels are low?

Low or absent Turnip antibody levels usually mean your immune system is not actively recognizing turnip proteins, which can reflect limited intake, oral tolerance, or lack of sensitivity. Compared with other elevated markers, low Turnip levels help show which foods are less likely to be associated with immune-driven reactions in your overall profile.

What does it mean if my Turnip levels are high?

Higher Turnip-specific IgA or IgG suggests immune recognition of turnip or related Brassica proteins; an IgA-dominant pattern points toward mucosal involvement and an IgG-dominant pattern indicates broader systemic recognition. Elevated results should be interpreted in the context of the complete Food Zoomer report and clinical history to determine whether they form part of a broader reactivity pattern.

Why is Turnip measured in the Food Zoomer?

Measuring Turnip captures reactivity to a common cruciferous vegetable and related protein families, adding peptide-level detail that can reveal clusters of reactivity across Brassica foods. This helps providers distinguish isolated signals from broader patterns and supports more precise dietary planning within the Food Zoomer framework.

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