Dear Reader –
I’m so glad you’re here. If you’ve landed on this page, chances are you’re tired of living with unpredictable digestion, endless food fears, and symptoms that make everyday life harder than it needs to be.
These days, it feels like almost everyone is dealing with bloating, cramping, urgency, or pain. What’s worse is that they’re being told it’s “just IBS” or something they’ll have to learn to live with.
But what if that wasn’t actually the case? What if there’s a way forward, beyond your symptoms, and you’ve just found it?
I was diagnosed with IBS in my early twenties, during my first year in pharmacy school. The year was 2002, and unfortunately, I didn’t get much help from modern medicine, despite being a student of it myself! I struggled with recurring bouts of painful cramping and explosive diarrhea until I eventually figured out how to resolve it, and I’ve spent the last decade helping others solve their digestive issues, too.
I want to share what I learned with you, so you don’t have to suffer needlessly.
I used to think everyone’s stomach hurt after eating, and bloating was just a part of life. I know many of my clients often think the same, accepting uncomfortable bloating after meals, bowel urgency, excessive flatulence, and their bowel patterns, such as frequent diarrhea or “going” every two weeks (and sometimes a mix of both) as “just the way their bodies work.”
But it’s not normal, and it’s not your destiny.
IBS: Finding and Treating the Root Cause of Irritable Bowel Syndrome is a groundbreaking guide that helps readers uncover the underlying causes of their IBS, so they can move beyond symptom management and start addressing the problem at its source.
For some, the root cause may be an enzyme deficiency. For others, it may be toxic exposures, bacterial overgrowth, food sensitivities, hidden infections, and other rarely investigated causes.
You’ll learn how to uncover the true source of your symptoms and create a personalized healing plan to restore your gut and your life.
I’ve divided the book into three parts:
If you’ve been struggling with digestive symptoms for too long, please know there is hope. There’s always a cause, and a path to healing is often a few short steps away, as long as you’re heading in the right direction. I hope this book gives you a roadmap to find your way to healing.
This is for you, my dear health-seeking readers, who are struggling at this moment – may you recover your health so that you can feel like the calm, beautiful, powerful, and brilliant person you truly are!
Warmly,
Dr. Izabella Wentz
If you’re reading this, there’s a good chance you’re not feeling like the best version of you. Maybe you:
If you’re anything like me, or the thousands of people I have supported over the last decade, conventional medicine has offered you very little hope!
You may have heard that these symptoms are “normal” or “just in your head,” but let me clarify: They are not “normal.” They are common.
Just because they are common, it does not mean that they are normal!
My story with IBS starts with ramen noodles covered in soy sauce. I was a graduate student, and this was my go-to meal to fuel my late-night study sessions.
This particular night, I went to bed around 2 a.m., feeling very confident about my ability to “ace” the exam I had been studying for all day and evening.
But alas my plans were foiled, as I was awakened around 4 a.m. with the worst kind of stomach cramping. I crawled out of bed and nearly doubled over in pain, before I made my way to the bathroom and experienced an excruciating bout of explosive diarrhea.
It was the first of many that late night, and I was still running back and forth between the bathroom and my bed when it came time to drive to my exam.
I apologize for the TMI (too much information) here, but you did express interest in a book about IBS, so I imagine you already had an idea I may be using some potty language. 🙂
I thought my digestive distress would be a one-time thing, perhaps due to food poisoning, but unfortunately, the symptoms kept coming back, and I started regularly struggling with digestive issues.
Soon thereafter, I was diagnosed with IBS.
I was given a prescription for Levsin® (hyoscyamine), an antispasmodic, anticholinergic drug that works by blocking the effects of the neurotransmitter acetylcholine to slow down digestive secretions and gut motility to reduce explosive stools. At first, I was excited as it seemed to work... But unfortunately, I soon realized this old school drug had many side effects.
While I no longer experienced diarrhea with this medication, I did start experiencing constipation. I also experienced dry eyes, dry mouth, and dizziness that impacted my everyday life.
And so began my journey of digging for the root cause of my digestive issues. For me, that looked like removing certain foods from my diet, resolving a gut infection, and addressing my thyroid health (I was diagnosed with Hashimoto’s a few years after my initial IBS diagnosis).
Along the way, I learned that what’s often labeled as “IBS” is often a sign of something deeper. Your symptoms may be caused by a different medically identifiable, treatable, and often testable condition, such as celiac disease, SIBO, or IBD.
In other cases, your symptoms may be caused by conditions that have not yet been recognized by conventional medicine but are largely known in functional medicine and natural medicine circles, such as enzyme deficiencies, protozoal infections, and bacterial imbalance in the gut.
I hope that this book helps you recognize various triggers, so you can find the most helpful approach to help you heal and say goodbye to your digestive symptoms and potentially even prevent or reverse an autoimmune diagnosis.
I’m so glad that you are here, and I hope this book helps you on your healing journey!
Inside this book, you’ll discover how to:
Furthermore, because all disease begins in the gut, this book will teach you how to get not just IBS into remission, but the guidance in this book will also provide solutions to various additional chronic health conditions, including Hashimoto’s and autoimmune disease.
There are three parts in this book: Understanding IBS and the Root Cause Approach, The Root Causes, and Creating Your Healing Plan.
You’ll walk away with a new understanding of the driving factors behind IBS, a healing roadmap, and protocols for specific symptoms you may be experiencing, so that you can start feeling better now.
The root causes we’ll explore include:
I also include extensive solution guides for specific symptoms, including acid reflux, bloating, cramping, stomach pain, constipation, and diarrhea, plus guides on how to do an elimination diet, how to decode your poop, and the tests that will be most helpful in identifying your unique root causes.
If you’ve ever felt overwhelmed by conflicting advice, endless food restrictions, or vague diagnoses, IBS: Finding and Treating the Root Cause of Irritable Bowel Syndrome is the clarity you’ve been searching for. This isn’t just another book about managing IBS – it’s a practical, empowering roadmap that helps you understand your body and work with it to heal from the inside out.
Whether you’re newly diagnosed or have been struggling for years, this book will walk you through the exact steps to identify what’s driving your symptoms and how to address those root causes with confidence. You'll learn how to work smarter, not harder, using the latest research and real-world strategies that actually make a difference.
This is more than symptom relief. It’s about reclaiming your energy, your confidence, and your life.
Izabella Wentz, PharmD, FASCP
is a pioneering clinical pharmacist and bestselling author with a passion for getting to the root of complex health conditions. Dr. Wentz holds advanced certifications in Medication Therapy Management and Diabetes Care. She has consulted on thousands of difficult cases during her career and is known for her ability to translate cutting-edge research into practical, life-changing protocols.
Dr. Wentz is the author of the New York Times best-selling patient guide Hashimoto’s Thyroiditis: Lifestyle Interventions for Finding and Treating the Root Cause, the protocol-based #1 New York Times best seller Hashimoto’s Protocol: A 90-Day Plan for Reversing Thyroid Symptoms and Getting Your Life Back, the Wall Street Journal best seller Hashimoto’s Food Pharmacology: Nutrition Protocols and Healing Recipes to Take Charge of Your Thyroid Health, and Adrenal Transformation Protocol: A 4-Week Plan to Release Stress Symptoms and Go from Surviving to Thriving.