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  • Courses
    • Masterclass
    • Constipation
    • Acid reflux/heartburn
    • Bloating
    • Diagnosing Food Intolerance
    • FODMAP Intolerance
    • Histamine Intolerance
  • Books
    • Plant Powered Plus
    • Fiber Fueled Cookbook
    • Fiber Fueled
  • Supplements
    • 38TERA
  • Community
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  • December 22, 2025

Recent Posts

Join 200,000+ Readers Upgrading Their Guts—Free!

Get science-backed gut health tools, microbiome breaking news, digestible study breakdowns, and drool-worthy recipes straight to your inbox, all with zero cost.

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    Most people think about gut health in terms of whi Most people think about gut health in terms of which bacteria they have. The emerging science says it’s more about what those bacteria are doing together.

Cross-feeding is the process by which one bacterial species produces compounds that neighboring species use as food. Lactate, formate, acetate— these metabolic byproducts circulate through your colon like currency in a thriving economy. The more diverse your plant intake, the richer and more functional that economy becomes.

This is why you don’t just need fiber. You need different kinds of fiber from different kinds of plants— because different bacterial strains specialize in different substrates. Rotating through the same few foods, even healthy ones, is like funding one sector of an economy and wondering why everything else is struggling.

The goal isn’t a complete dietary overhaul overnight. It’s expansion. Add one new plant this week. A different legume, an unfamiliar grain, a vegetable you haven’t bought in years. Your microbial community will notice.

💬 Hot take: most people think they eat a diverse diet. Most people are wrong. How many different plants did you actually eat this week? Be honest.
    Your brain lies to you when you’re stressed. It te Your brain lies to you when you’re stressed.
It tells you that you need alcohol to relax. That ultra-processed food is comforting. That the sugar crash you’re feeling warrants a quick fix.

It’s a trap. And most people fall for it every single time.
Here’s what’s actually happening: stress is already damaging your gut barrier, activating inflammation, and depleting your good bacteria. The things your brain is craving in that moment make every single one of those things worse.

What your gut actually needs right now is fiber: to protect your microbiome, repair the barrier, and bring that inflammation back down.

Comment STRESS and I’ll send you the full video on exactly what stress does to your gut — and how to fight back. 🧠
    If you’ve ever added more fiber to your diet and e If you’ve ever added more fiber to your diet and ended up bloated, gassy, and miserable—this is for you.
Fermentation is not inflammation. Gas is not damage. Your gut just hasn’t been trained yet.
Swipe for the 4 reasons it’s happening and exactly how to fix each one.
Comment FIBER and I’ll send you my full podcast episode! 👇
    Nanoplastics are showing up in human arteries — an Nanoplastics are showing up in human arteries — and the findings are terrifying.
This is from my recent episode on The Model Health Show with @shawnmodel . Comment PLASTIC and I’ll send you the full episode link. 🎙️
    Everyone thinks a hangover is just dehydration. Dr Everyone thinks a hangover is just dehydration. Drink some water, pop some Advil, and you’re good.

But that’s not the whole story.

The real reason you feel so awful the day after drinking? Inflammation. And it’s coming from your gut.

As a gastroenterologist, this is one of the most important distinctions I can make, because it changes everything about how you understand alcohol’s impact on your body.

💬 Comment HANGOVER below and I’ll send you the link to my full YouTube episode where I break all of this down.
    You’re probably drinking your coffee too early. ☕ You’re probably drinking your coffee too early. ☕
This one habit could be messing with your gut motility, your energy, and your cortisol rhythm- and most people have no idea.
Watch this 👆 then comment COFFEE and I’ll send the full episode to your DMs.
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