Whether you're just starting your gut health journey or optimizing, I'm glad you're here!

I want to empower you with the tools you need, including diet, lifestyle, supplements, daily habits and powerful connections, to achieve the best health of your lifetime.

Discover Your Gut Type

Receive a personalized gut health type
and recommendations from Dr. B.

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Bowel Movement Frequency(Required)
In a typical week, how often do you have a bowel movement?

Best Selling Courses

The Gut
Health Masterclass

Enroll for $499

Best Seller!
  • 7 weeks of daily audio and video lessons, self-paced
  • Comprehensive knowledge on supporting your gut health
  • Create an action plan to address digestive disorders
  • 27 exclusive recipes
  • 30+ hours of Vault Q&A and expert discussions

This is the premier gut health masterclass led by an award-winning gastroenterologist and New York Times bestselling author.

Expand Get Masterclass

Conversations about Constipation

Enroll for $77

  • 2-hour expert training with Dr. B to understand comprehensive and holistic treatment strategies to get the bowels back in a rhythm
  • Uncover the root of the problem
  • Explore natural strategies & medications
  • Supplements to use (& avoid!)
  • Vault Q&A session with Dr. B

Expand Get Regular

Head-to-Head with Heartburn

Enroll for $77

  • 2.5-hour expert training with Dr. B to understand comprehensive and holistic treatment strategies for heartburn and reflux, including silent reflux and LPR
  • 5 key points I wish everyone knew
  • 6 natural remedies to try
  • Understanding the relationship between acid reflux & the gut microbiome
  • Health conditions associated with acid reflux

You can radically change your symptoms of acid reflux using education, diet and lifestyle changes. I’m here to help.

Expand Tame the Flames

Each course includes:

Instant Access to Learning

When you purchase one of Dr. B's online courses, you will receive instant access to your learning portal.

Community Access

Your success in a healthy lifestyle hinges upon support. Our gut health community is amazing and welcoming!

Find the Root Cause

Our trainings cover a myriad of gut health issues: FODMAP intolerance, histamine intolerance, constipation, and more.

Recipes & Shopping Lists

To be intentional about your health, planning is imperative. That's why Dr. B includes shopping lists & recipes with his courses.

Interactive Worksheets

Each training includes interactive worksheets and guides to make it easy for you to supercharge your gut and create habits that will stick.

Unlimited Access

You’ll have on-demand access to all the recordings and downloadable PDFs so you can revisit lessons whenever you want.

Dr. B - The Gut Health MD - gut health expert - thriving health begins in the gut

Bestselling Author

Meet Dr. B

Will Bulsiewicz, MD, MSCI

At The Gut Health MD, I take a gut-first approach to improving your health. As a board-certified gastroenterologist, I have two decades of clinical experience helping people heal from gut & microbiome issues that undermine their health. Every day, we are uncovering more evidence that shows that health begins in the gut. Imagine a world without gut health symptoms like bloating, discomfort, messed up bowels or reflux. Imagine you can achieve it by adding to your diet instead of taking everything away.

As a medical doctor, I want to help you achieve results and feel the difference. For some of you, that means more plants and less ultra-processed foods. But this isn’t one size fits all, and that’s not the only recipe for success. Ultimately, my goal is to empower you with the knowledge that you need to thrive — diet, exercise, circadian rhythm, fasting, sleep, stress reduction, addressing trauma, and fostering human and spiritual connection are all on the table as tools we can use to fulfill your goal.

Each course is virtual and comprehensive. They range from 2-30 hours of video training, depending on how deeply I cover the topic.

Fiber Fueled is so much more than a health book.

It’s a step-by-step methodology to stop the misinformation madness caused by the diet industry, and show you the simple, science-backed process for a lifestyle that is effortless, sustainable, and above all else it transforms your health by optimizing your gut microbiome.

Inside the four-week Fiber Fueled journey, you’ll find:

  • The revolutionary, first of its kind guide to plant-based gut health
  • Truth bombs that will blow your mind, change your approach and get you on the road to better health

What To Expect From A Dr. B Course

Instant Access to Learning
Instant Access to LearningWhen you purchase one of Dr. B's online courses, you will receive instant access to your learning portal.
Recipes &  Shopping Lists
Recipes & Shopping ListsTo be intentional about your health, planning is imperative. That's why Dr. B includes shopping lists & recipes with his courses.
Join the  Community
Join the CommunityYour success in a healthy lifestyle hinges upon support. Our Plant Fed Gut community is amazing and welcoming!
Interactive  Worksheets
Interactive WorksheetsEach training includes interactive worksheets and guides to make it easy for you to supercharge your gut and create habits that will stick.
Find the Root  Cause
Find the Root CauseOur trainings cover a myriad of gut health issues: FODMAP intolerance, histamine intolerance, constipation, and more.