Find out why you have SIBO?
Underlying Causes of SIBO Masterclass
with Dr. Allison Siebecker and Hosted by Shivan Sarna
Get your health back without wasting time, energy, and money
Watch party on April 16, 2026, 3pm EDT followed by live 2-hour Q&A starting at 4pm EDT
5 Masterclasses + 8 hours of Q&A
+ The SIBO Testing Masterclass BONUS!
+ $50 off discount on SIBO Lab Tests
Learn the reasons why you have Small Intestinal Bacterial Overgrowth (SIBO) and how the root causes determine which treatments will and won't work.
What caused your SIBO – and more importantly, why does it matter? Learn about the most common underlying causes of SIBO, plus how to determine the underlying causes in your case. Then, find out why knowing your underlying cause is such an important part of the healing process, and how misunderstanding your underlying cause could lead to needless suffering (not to mention the cost of time and money).
Here's the tricky part:
SIBO doesn't just show up out of nowhere.
Something is causing it.
Maybe it's a migrating motor complex that isn't sweeping bacteria out of your small intestine the way it should.
Maybe it's a structural issue, like adhesions from a surgery you had years ago, or an ileocecal valve that's stuck open.
Maybe it's food poisoning you had so long ago you don't even remember it, because here's the thing most people don't realize: food poisoning symptoms can be so mild you barely notice, and the SIBO it triggers can show up two or three months later with zero obvious connection.
One of Dr. Siebecker's patients had no memory of food poisoning whatsoever. None. But the blood test came back positive, and that was her answer after years of mystery.
There are dozens of possible causes, from hypothyroidism to Ehlers-Danlos to traumatic brain injury to the antibiotics you took for a sinus infection. Most people don't have just one. They have several, stacked on top of each other, quietly accumulating, until one final straw pushes everything over the edge.
And that's exactly why so many people treat their SIBO, feel better for a few months, and then relapse. Because the treatment handled the overgrowth, but nobody found the thing underneath that allowed the overgrowth to happen in the first place. It's like mopping the floor while the faucet's still running. You can mop beautifully, but you're going to be mopping again.
The real path forward is identifying YOUR specific underlying cause, or more likely, your specific combination of causes, and then addressing those directly. Some of them are very fixable. Medications can be changed. An ileocecal valve can be manually adjusted. Adhesions can be treated with specialized physical therapy. Others, like Ehlers-Danlos or scleroderma, can't be cured but can absolutely be managed well enough that you're not stuck in an endless relapse cycle. Either way, you can't fix what you haven't found.
And that's what this masterclass is built to help you do.
- Finally understand WHY you have SIBO, not just that you have it, so you can stop guessing and start treating the right thing
- Know the difference between causes that can be resolved and ones that need ongoing management, so you stop chasing a cure that doesn't exist for your situation and start a plan that actually works
- Have a clear, organized framework for a topic that has probably felt impossibly overwhelming, so the next time you fall down a Google rabbit hole at 2am, you actually understand what you're reading
- Get your specific questions answered anytime through SIBO Smart Search, plus gain access to our live Ask the SIBO Specialist Anything Q&A sessions running through October 2026, where you can ask about your case, your history, your weird symptom that nobody's been able to explain, not just the masterclass material but anything SIBO-related (and the sooner you grab your spot, the more live sessions you get to attend)
- Stop blaming yourself for not getting better when the real issue might be structural, autoimmune, or medication-related, something no amount of willpower or diet perfection can fix on its own
SIBO SOLUTIONS SERIES
Total Value $1021 - that is 80% off!
Here is the schedule:
April 16, 2026, 3 - 6pm ET Underlying Causes of SIBO
June 18, 2026, 3 - 6pm ET Tough SIBO Cases & Science Updates
August 20, 2026, 4 - 7pm ET SIBO Treatment & Prevention
October 22, 2026, 4 - 7pm ET SIBO Diets
+ The SIBO Testing Masterclass included as a bonus!- 5 Complete Masterclasses — Every masterclass comes with instant access to all course materials and a dedicated 2-hour expert Q&A ($495 value)
- 8 hours of Q&A sessions some ready to watch now and others still coming, where you can pre-submit your questions. ($330 value)
- BONUS Masterclass #5: The SIBO Testing Masterclass ($99 value)
- $50 off discount on SIBO Lab Tests
- NEW! Answers without watching every video (gasp) Just ask. Smart Search pulls the exact answer from the videos, transcripts and slides—so you don't have to. ($97 value)
- Presentation Slides — slides covering interpretation criteria and Dr. Siebecker's specific recommendations.
- Instant Unlimited Access watch now and revisit the masterclasses anytime.
- Audio Version Listen on the go and absorb the insights without needing screen time.
- 15% off over 20,000+ professional-grade supplements with Dr. Siebecker's recommendations
SIBO Underlying Causes Masterclass
- Watch party on April 16, 2026, 3pm EDT followed by live 2-hour Q&A starting at 4pm EDT
- 1 Complete Masterclass — Dr. Siebecker walks you through how to determine your underlying cause and what to do to relieve your SIBO symptoms. ($59 value)
- 2 hours of Q&A Real questions and answers from patients and practitioners—the tricky patterns, confusing results, and "what about my situation?" moments. Participants consistently tell how much they learn from other people's questions. ($66 value)
- BONUS Masterclass: The SIBO Testing Masterclass ($99 value)
- $50 off discount on SIBO Lab Tests
- NEW! Answers without watching the video (gasp) Just ask. Smart Search pulls the exact answer from the videos, transcripts and slides—so you don't have to. ($97 value)
- Presentation Slides — 75 slides covering interpretation criteria and Dr. Siebecker's specific recommendations.
- Instant Unlimited Access revisit the masterclass anytime.
- Audio Version Listen on the go and absorb the insights without needing screen time.
- 15% off over 20,000+ professional-grade supplements with Dr. Siebecker's recommendations
🔒 For your security, all orders are processed on a secured server.
“I literally can not imagine where I would be without this class and all of this content.”
Anne
⭐⭐⭐⭐⭐
“Being introduced to SIBO has given me hope that I can change my life and live without symptoms.”
James
⭐⭐⭐⭐⭐
“I found affirmation that I have many of a few underlying causes of SIBO. I learned about many more causes I wasn't even aware of.”
Betty
⭐⭐⭐⭐⭐
Together, we created these resources to give you the guidance and support we wish we had when we started our own healing journeys. We’ve both been where you are now, and we know exactly how overwhelming it can feel. But we also know there’s a way forward — a clear path to healing that we’re excited to share with you.
Dr. Allison Siebecker
ND, MSOM, LAc
Dr. Siebecker is the 2021 GastroANP Lifetime Achievement award winner (from her peers) and has treated SIBO exclusively for 15 years. She is in an instructor of advanced gastroenterology and NUNM and co-created the SIBO treatment algorithm used by practitioners worldwide. She's not teaching theory. She's teaching what actually works—the interpretation methods she uses with real patients who finally got better and practitioners around the world.
Shivan Sarna
Author of Healing SIBO
Shivan Sarna, founder of SIBO SOS® and author of Healing SIBO. After a lifetime of digestive problems, she was diagnosed with SIBO in 2015. Shivan was so excited to finally have a name for the symptoms that made me miserable – but she was quickly very frustrated by how hard it was to get access to reliable SIBO information, or even an appointment with a doctor who had experience treating SIBO. She set out to get answers about SIBO for herself – but along the way, she met thousands of people who had the same challenges.
Sound familiar? These questions come up constantly—so we built a class to answer them.
What if food poisoning I don't even remember is why my SIBO keeps coming back?
No. Dr. Allison Siebecker explains how you can order a lactulose breath tests yourself (no doctor required) and complete the test at home.
Could my own medications be quietly fueling my SIBO?
The masterclass breaks down which gas types are most commonly tied to constipation, diarrhea, or mixed symptoms—so you can choose the right testing approach instead of guessing.
I've treated my SIBO more than once, so why does it keep relapsing?
What if my SIBO is actually a structural problem nobody has looked for?
Could a stomach flu I brushed off months ago be the starting point of all of this?
This is exactly why the class exists. Labs use standardized criteria that can miss real cases, and Dr. Siebecker teaches how she interprets results differently.
What if no treatment has stuck because I've been solving the wrong problem?
What if I don't have one underlying cause but several, stacked on top of each other?
Could a surgery or injury from years ago be silently obstructing my small intestine today?
I've done the antimicrobials, the diet, and the prokinetics, but has anyone helped me figure out WHY I have SIBO?
What would change if I finally knew the specific, treatable reason my SIBO exists?
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