What colonoscopy prep does to your microbiome and how to bounce back

What colonoscopy prep does to your microbiome and how to bounce back

Author: QuickAndDirtyTips.com, Monica Reinagel, MS, LDN July 29, 2026 Duration: 10:34

873. Colonoscopy prep flushes everything out of your large intestine, including the trillions of bacteria that make up your gut microbiome. So once it's over, is that a chance to rebuild your intestinal flora better than before? A listener named Fred wondered the same thing, and when he asked his gastroenterologist, the idea got pooh-poohed. 

In this episode, Monica digs into what colonoscopy prep actually does to your gut bacteria, how quickly a healthy microbiome bounces back, and whether that reshuffling opens a real window to influence which species take hold. She shares her common-sense approach to restoring gut flora afterward, from the fiber-rich foods that feed beneficial bacteria to the fermented foods linked with greater microbiome diversity, plus the two things worth easing off while your gut recovers. And she weighs in on whether probiotic supplements are worth your money or just wishful thinking.


Nutrition Diva is a Quick and Dirty Tips podcast, hosted by Monica Reinagel.

New to Nutrition Diva? Check out our special Spotify playlist for a collection of the best episodes curated by our team and Monica herself! 

We've also curated some great playlists on specific episode topics including Staying Strong as We Age, Diabetes, Weight Loss That Lasts and Gut Health! Also, find a playlist of our bone health series, Stronger Bones at Every Age. 

Have a question for Nutrition Diva? Email: nutrition@quickanddirtytips.com

Find Monica at wellnessworkshere.com


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You're probably tired of the constant noise around what to eat, with every headline seeming to contradict the last. Nutrition Diva cuts through that confusion. Hosted by Monica Reinagel, a seasoned expert from QuickAndDirtyTips.com, this weekly conversation feels like getting clear, practical advice from a trusted friend who actually understands the science. Instead of pushing fads, Monica takes the latest nutrition research and unpacks it in a way that makes sense for real life, separating the solid findings from the hype. She directly tackles the questions that pop up in your own kitchen, whether you're wondering about a new superfood or just trying to pack a better lunch. The goal isn't perfection, but building a sensible, sustainable approach to food that leaves you feeling informed and in control. Tuning into this podcast means replacing anxiety with actionable knowledge, so you can make choices that are right for you without the dogma. It's a grounded resource for anyone who wants to think about health and eating well, but could do without the extreme diets and scare tactics.
Author: Language: English Episodes: 50

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