From New York Times, USA Today, Publishers Weekly Bestselling Author Dr. Will Bulsiewicz, MD, MSCI

April 10 - 14, 2023

Join 25 world-renowned wellness leaders and visionaries for 5 days of virtual sessions on nourishing food, lifestyle, environment, mind and body practices.


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The Fiber Fueled Cookbook

Turbocharge Your Health, Heal Your Food Sensitivities, and Inspire Your Tastebuds With Deeply Flavorful, Satisfying Plant-Based Recipes

From Dr. Will Bulsiewicz, New York Times Bestselling Author of Fiber Fueled


Sign up below to receive your 30+ page guide to all the science dropped on The Rich Roll Podcast

Fact: Food is the #1 determinant of health and disease during your lifetime.

Over the years, you’ll eat a whopping ~80,000 pounds of it.

The good news? That means you get ~80,000 chances to make a great choice for your body and your life. Because research shows: Whether it’s digestion, metabolism, the immune system, or your mood — all thriving health begins in the gut.

And no matter where you are or what you’re struggling with?


You can start right now.

gut health fact #1

70% of your immune system lives in your gut, directly communicating with your gut microbes

gut health fact #2

90% of serotonin – the happy hormone that controls mood – is produced in the gut

gut health fact #3

Gut microbes can tinker with your hormones, estrogen and testosterone

gut health fact #4

Through epigenetics, gut microbes can play your genetic code like a switchboard, flipping genes off and on

gut health fact #5

Even Ryan Gosling has microbes in his gut


An instant New York Times, USA Today and Publishers Weekly bestseller!

Fiber Fueled is a step-by-step methodology to stop the misinformation madness caused by the diet industry. It will 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.


Opening June 20 for the only class of 2022!

Are you ready to feel like yourself again? Before the food sensitivities, bloating, and messed up bowel movements? Over seven weeks, you will learn to heal your gut, optimize your microbiome and reverse dysbiosis so you can finally take back control of your health.

I’m Will Bulsiewicz, MD MSCI, board certified gastroenterologist and gut health expert—but you can call me Dr. B.

drb-as-seen-in (1)

Every day, I help my patients and members of my #plantfed community hop off the “health hype train” to nowhere (like bouncing from Whole30 to raw fruit vegan, Atkins, keto, paleo, and back again) and into a whole new experience of "lifestyle medicine" - which is so much more powerful than a pill or diet.

Think of me like the doctor in your pocket (or laptop), bringing you the latest breakthrough research and gut health science, and helping you apply it in a fun, easy way that fits your real life.

Because living—and feeling—better is what being #plantfed is all about.