A space for those who care about the science behind their food.

Fiber Fueled

Ads·Shop fiber fueled the plant based gut health program for losing weight restoring your health and optimizing your microbiome

Fiber Fueled is a bold new plant-based plan that challenges popular keto and paleo diets, from an award-winning gastroenterologist.

The benefits of restrictive diets like paleo and keto have been promoted for more than a decade, but as a renowned gastroenterologist, Dr Will Bulsiewicz, or “Dr B,” illuminates in this groundbreaking book, the explosion of studies on the microbiome makes it abundantly clear that elimination diets are in fact hazardous to our health.

What studies clearly now show is that gut health is the key to boosting our metabolism, balancing our hormones, and taming the inflammation that causes a host of diseases. And the scientifically proven way to fuel our guts is with dietary fiber from an abundant variety of colourful plants.

Forget about the fiber your grandmother used to take. As Dr B explains, fiber energizes our gut microbes to create powerhouse postbiotics called short-chain fatty acids (SCFAs) that are essential to our health.

SCFAs are scientifically proven to promote weight loss, repair leaky gut, strengthen the microbiome, optimize the immune system, reduce food sensitivities, lower cholesterol, reverse type 2 diabetes, improve brain function, and even prevent cancer. Restrictive fad diets starve the gut of the critical fiber we need, weaken the microbes, and make our system vulnerable.

Short-chain fatty acids (SCFAs)
Most common short-chain fatty acids (SCFAs). Photo credit: IntechOpen.

As a former junk-food junkie, Dr. B knows firsthand the power of fiber to dramatically transform our health.

Fiber-rich, real foods including vegetables, whole grains, seeds, nuts, and legumes start working quickly and maintain your long-term health, promote weight loss, and allow you to thrive and feel great from the inside out. Therefore, the good news is that our guts can be trained.

With a 28-day jumpstart program with menus and more than 65 recipes, along with essential advice on food sensitivities, Fiber Fueled offers the blueprint to start turbocharging your gut for lifelong health today.


Will Bulsiewicz, MD MSCI is a board-certified gastroenterologist and gut health expert. Every day, he helps patients and members of his community bounce back from restrictive and over-hyped diets, and into a whole new way of living and eating that produces the results they really want permanently. At the core of his philosophy is what he calls “lifestyle medicine”, which uses food, exercise, and other lifestyle factors to optimize your gut, get you back in control of your health. Through his upcoming book and free tools, Dr B breaks it all down for you, piece by digestible piece, so you can take the simple steps that will help you create incredible shifts in your digestion, symptoms, and life. For more from Dr B, say hi to him on Instagram or Facebook at @theguthealthMD.

Dr. Will Bulsiewicz
Dr. Will Bulsiewicz. Photo credit: Smart People Podcast.


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Pedro Rivero

(BSc, PhD)


I am a Food Science PhD candidate wishing to communicate my knowledge in this field through this blog and my social media.

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Shop here my book. English version is on the way!

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