Take control of your health: Learn more about our Plant-Based Nutrition CertificateLearn more about our Plant-Based Nutrition Certificate

Will Bulsiewicz, MD MSCI, (a.k.a. Dr. B) is the New York Times bestselling author of the book Fiber Fueled. He's also an award winning gastroenterologist, gut health expert and the author of more than twenty articles in the top American gastroenterology journals. He's a graduate of Georgetown University School of Medicine and was chief medical resident at Northwestern Memorial Hospital and chief gastroenterology fellow at the University of North Carolina Hospitals. He lives in Charleston, South Carolina, with his wife and two children. For more from Dr. B, say hi to him on Instagram or Facebook at @theguthealthMD.

Fiber Fueled – The Key to a Strong Immune System

Fiber Fueled – The Key to a Strong Immune System

The power that our gut microbes wield to induce disease or protect us from it can be intimidating, but we are not helpless victims. We have the power of science on our side, which has shown us that we can use diet and lifestyle to rebalance our gut microbes.


We’ve partnered with renowned online education provider eCornell, to offer a revolutionary program to help you understand the importance of diet and nutrition for your life. In a few short weeks arm yourself with the knowledge you need to improve your overall health, learn new skills, or even inspire a career change. Hear what people are saying.

We’ve partnered with renowned online education provider eCornell, to offer a revolutionary program to help you understand the importance of diet and nutrition for your life. In a few short weeks arm yourself with the knowledge you need to improve your overall health, learn new skills, or even inspire a career change. Hear what people are saying.

100% online, learn at your own pace

Expert interaction and enriching peer discussions

Science-based foundation

A trusted credential from eCornell

Sign up for our free newsletter

Live a healthier lifestyle with science-based information and how-to advice delivered straight to your inbox.