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Also reported in: mg/dL
Your secretory IgA is within the normal reference range, indicating adequate gut mucosal immune defense.
Your secretory IgA is critically low. Secretory IgA is the main antibody defending the gut lining against pathogens and food antigens. Critical depletion leaves the gut mucosal surface almost undefended, dramatically increasing risk of gut infections, pathogen overgrowth, food sensitivities, and autoimmune gut disease.
Seek urgent medical evaluation. Selective IgA deficiency or noticeable acquired IgA deficiency should be investigated. Gut infection assessment and immune function testing are needed.
Secretory IgA critically low (<200 mcg/mL) — noticeable gut immune deficiencyYour secretory IgA is below the reference range. Low sIgA leaves the gut mucosal lining less protected against pathogens, allergens, and harmful bacteria. It is associated with recurrent gut infections, food sensitivities, SIBO, and increased intestinal permeability. Chronic stress, overtraining, and malnutrition can suppress sIgA production.
Discuss with your doctor. Lifestyle modifications to reduce stress and improve sleep are important. Probiotics (particularly Lactobacillus and Bifidobacterium strains) and colostrum may help restore sIgA. Assess for underlying immune deficiency.
Secretory IgA below reference range — gut mucosal immunity depletedYour secretory IgA is at the lower end of normal. While not critically depleted, a lower sIgA may contribute to increased gut vulnerability to infections and irritants.
Support gut immune function with adequate sleep, stress management, fermented foods, and probiotic-rich diet. Retest in 3–6 months.
Secretory IgA: low-normal — borderline gut immune statusYour secretory IgA is within the normal reference range, indicating adequate gut mucosal immune defense.
No specific action required.
Secretory IgA within reference range — adequate gut mucosal immunityYour secretory IgA is in the optimal range, reflecting excellent gut mucosal immunity. This is associated with better gut infection resistance and reduced food sensitivity risk.
No action needed. Continue supporting gut health through fiber-rich diet and fermented foods.
Secretory IgA: optimal — excellent gut mucosal immune functionYour secretory IgA is above the reference range. Elevated sIgA can indicate active gut immune response to pathogens (parasites, bacteria), chronic gut inflammation (IBD, celiac), food antigen exposure, or SIBO. Mild elevation may reflect a healthy immune response.
Discuss with your doctor. Rule out active gut infection, assess for celiac disease and IBD, and review dietary allergen exposure.
Secretory IgA above reference range — elevated gut immune activationYour secretory IgA is significantly elevated. High sIgA indicates a strong ongoing gut immune response, which can be associated with active parasitic infection, SIBO, chronic gut inflammation, celiac disease, or significant dietary antigen exposure.
Seek gastroenterology evaluation. Stool testing for parasites and bacterial pathogens, celiac panel, and gut microbiome assessment should be considered.
Secretory IgA significantly elevated — active gut immune responseYour secretory IgA is critically elevated, suggesting a very intense and sustained gut immune response. This level may be associated with noticeable parasitic infection, noticeable IBD, or other significant gut pathology requiring medical investigation.
Seek urgent gastroenterology evaluation. Comprehensive stool testing and endoscopic assessment should be arranged promptly.
Secretory IgA critically elevated — noticeable active gut immune activationUpload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.