Stool Antigen Test: Detect GI Infections Quickly and Accurately

A stool antigen test quickly and accurately detects GI infections by identifying specific antigens shed by pathogens in the stool. This rapid test is commonly used when symptoms like diarrhea, abdominal cramps, fever, or dehydration appear—especially after travel or known exposure. Indications include acute diarrhea lasting a day or two, persistent GI symptoms in older adults or people with weakened immune systems, and situations where a clinician needs to distinguish an infectious GI illness from other conditions. Because many panels deliver results the same day, it helps you and your healthcare provider make timely treatment decisions. Interpreting the results of a stool antigen test is straightforward: a positive result indicates that one or more targeted pathogens were detected, supporting a diagnosis of an active infection and guiding appropriate therapy. A negative result suggests those specific pathogens were not detected at the time of testing; however, it does not completely rule out infection—if symptoms persist or worsen, your clinician may recommend repeat testing or additional methods to catch other organisms or early infections. Beyond the diagnostic value of a stool antigen test, InnerBuddies offers a comprehensive ecosystem that helps you understand and optimize your gut health over time. The white-label Gut Health Operating System powers consumer and partner testing products with features like a Gut Microbiome Health Index (0–100) and a top-40 bacteria view that shows how you compare to a healthy cohort. It also categorizes bacterial metabolic functions as positive or negative and provides target-group analyses for topics such as Healthy Aging, Endurance Sport, and Skin & Hair Health. With personalized nutrition advice based on three-day food diaries and stool data, plus tailored probiotic and prebiotic recommendations, InnerBuddies helps translate test results into practical actions. Learn more about these capabilities with the InnerBuddies microbiome test and related ecosystem, and consider how these tools fit alongside your stool antigen test results. InnerBuddies offers both consumer-friendly gut test solutions and business-to-business options. If you’re looking for ongoing gut health programs, explore the Gut Health Membership for continuous insights, or visit the Become a partner page to learn about collaboration opportunities and white-label deployments.