Cherries are fruits from trees in the Prunus genus (e.g., Prunus avium). The biomarker targets structural proteins found in cherry flesh and skin, including common plant proteins such as PR-10 homologs, profilins, and lipid-transfer proteins. These protein families are biochemically stable and can be recognized by antibodies when the immune system encounters them. Clinically, recognition of cherry proteins has been linked to cross-reactive responses with airborne pollen proteins in some people and to localized oral or gut symptoms in others. Tracking antibody reactivity to specific cherry proteins can clarify whether immune activity is directed at stable storage proteins or at more labile pollen-related proteins, informing interpretation within a broader food-response profile.

Elevated IgA against cherry proteins may indicate increased mucosal immune engagement at the gut or oral surfaces following exposure to cherry components. Elevated IgG may reflect broader systemic immune recognition after repeated or significant exposure. Higher responses to specific protein types (e.g., LTPs versus profilins) can suggest different patterns of immune memory or cross-reactivity. Low or undetectable IgA/IgG levels may reflect immune tolerance, limited recent exposure, or absence of immune recognition. Any single Cherry result is most informative when compared with other Food Zoomer markers, clinical history, and symptom patterns to map meaningful food-immune relationships.

Cherry is included to assess antibody reactivity to Prunus fruit proteins and to detect cross-reactive patterns with pollen-related antigens. This marker helps identify whether immune activity clusters around fruit proteins, informing personalized dietary strategies and targeted follow-up within the Food Zoomer report.