When Your SIBO Test Is “Negative,” But Your Symptoms Say Otherwise

Send us Fan MailIn this episode, Alyssa breaks down why SIBO breath tests can miss what’s actually happening, and how to look beyond the “positive vs negative” label to understand what your body is really telling you. You’ll learn how factors like test type, timing, gas patterns, and even transit time can completely change how results should be interpreted.You’ll learn:Why glucose vs lactulose testing can lead to false negativesHow methane overgrowth (IMO) is often missed entirelyThe problem with strict lab cutoffs (and what they overlook)Why a “normal” result can still show clinically meaningful patternsWhat flatline results may actually indicate (including hydrogen sulfide)How slow or fast gut motility can distort your test resultsThe difference between lab interpretation and clinical interpretationReal patient case examples where “normal” results missed the diagnosisThis episode includes visual walkthroughs of real SIBO breath tests.👉 Watch the full video breakdown on YouTube👉 Read the full blog with graphs + explanationsFree resources:Download the SIBO Diet Recipe Collection for delicious and varied breakfast, lunch, snack, and dessert options to keep you happy while you navigate the process of clearing your SIBO. Check out Alyssa’s FREE Masterclass “Why your gut still isn’t better - the real reason you feel stuck to understand the root causes behind your persistent gut symptoms.Learn more about Nutrition Resolution’s Signature Healthy Gut Restoration Program — a personalized, root-cause approach to addressing bloating, constipation, and underlying digestive imbalances.If you’re enduring uncomfortable, painful, and embarrassing GI symptoms and feel like you’ve tried everything, Alyssa uses a specialized approach to help people who’ve gone from doctor to doctor finally find relief. Book your 15-minute strategy call for FREE here.DM “GUT CHECK” on Alyssa’s Instagram for a personalized quiz and free meal plans & resources tailored to your symptoms.Find Alyssa on: Instagram, LinkedIn, Facebook, Pinterest  -Looking for a supportive Gut Health community? Alyssa is building a community committed to helping people overcome their digestive symptoms by addressing the root cause using food and nutrition. Join Alyssa’s FREE Facebook Community here.Tune in and subscribe to "The Gut Health Dialogues" for inspiring client transformation stories and expert insights into gut health. Leave a review—Your support will help Alyssa empower more people with the knowledge and tools to take control of their gut health and reclaim their lives.