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Fiber Maxxing and Poo Maxxing, with Dr. Trisha Pasricha artwork

Fiber Maxxing and Poo Maxxing, with Dr. Trisha Pasricha

Science Vs

October 15, 2026

Have you been puzzled by your poos or felt down about your dumps?? You’re not alone! So many of us are struggling with gut issues, which is why fiber is having a major moment. But even though we’re secretly guzzling psyllium husk, tons of us are too embarrassed to talk about our poo problems.

Speakers Trisha Pasricha, Wendy Zukerman

TopicsScienceEducation

Trisha Pasricha (0:01)

It is not the same poop. Two hours from now, you are dealing with a different poop than the one you are when the call comes. First of all, can we talk about what the call is?

SPEAKER_2 (0:10)

Yes, please.

Trisha Pasricha (0:11)

The call is simply the rectum spasming.

That's what that feeling is, that sensation like, shoot, I got to go. Suddenly, what is this? It's your rectum spasming.

SPEAKER_2 (0:21)

Wow.

SPEAKER_4 (0:22)

Do-do-do, Science Chats with our favorite nerds.

Wendy Zukerman (0:29)

Yeah.

Are you pooing all wrong?

Hi, I'm Wendy Zukerman and this is Science Vs. Today on the show, why so many of us have gut issues, what we can do about it and how healthier poos might just make you happier. A survey of more than 70,000 Americans found that just one week, around one in four had abdominal pain, one in five said they'd felt bloating, diarrhea and or constipation, and one in 20 people said they'd pooed their pants. That's a lot of us dealing with this crap. And worse still, surveys find that many of us are just too embarrassed to talk about this stuff with our doctor. And so we just live like this in silence.

But no more. Our guest today is a kaka warrior. She is fighting the good fight here. Her name is Dr. Trisha Pasricha. She's a neuro gastroenterologist at Harvard Medical School and director of the Institute for Gut Brain Research at Beth Israel Deaconess Medical Center, where she researches how diseases in your brain, like Parkinson's, can start in your gut. Trisha also wrote the bestselling book called You've Been Pooping All Wrong, because she ultimately wants us to open up our hearts and our sphincters and learn more about how we can take care of our guts and go to the toilet just right. She wrote in her book that it's time to give your poop the Cinderella moment it deserves. So, pop on your gown and your glass slippers, but forget the ballroom, we're heading to the bathroom. Let's get this potty started. Let's learn all about poo and turds and how we can start feeling healthier in our guts. And if you know someone who is having gut troubles, spends ages in the toilet, send them this episode. They will laugh and learn.

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SPEAKER_7 (3:08)

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SPEAKER_8 (4:45)

Hi, Trisha. Welcome to the show.

Trisha Pasricha (4:47)

Oh my gosh. Thank you for having me.

Wendy Zukerman (4:49)

We're going to have so much fun. I've done my morning poo already. Oh my God.

Trisha Pasricha (4:53)

In honor of. I'm so delighted.

SPEAKER_9 (5:01)

So Trisha, you have a dream. You have a dream to give us poop for you.

Is that right?

Trisha Pasricha (5:11)

Poo for you. That's what I want everyone to achieve. And despite what I think people think when they hear that term, it's actually a state where thinking about your bowel movements, poop, poo, is the absolute least of your daily concerns. It's where you're not thinking about this day to day, where it just happens effortlessly, quickly, and you're done and you feel light, easy. You go about the rest of your day and you're not obsessing about this. That's what poo for you is.

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