The Skinny Confidential Him & Her Podcast - Dr. Karan Rajan On The Truth About Gut Health, & The Rise of Colorectal Cancer

Episode Date: February 23, 2026

#943: Join us as we sit down with Dr. Karan Rajan – doctor, health educator, & bestselling author of This Book May Save Your Life & This is Vital Information. Known across social media for debunking viral health trends, he's become one of the most trusted voices in gut & general health. In this episode, Dr. Karan Rajan breaks down the alarming rise of colorectal cancer, how gut health impacts hormonal conditions like endometriosis, the truth about fiber intake, what your GI tract is really trying to tell you, & debunks today's biggest viral health trends.   To Watch the Show click HERE   For Detailed Show Notes visit TSCPODCAST.COM   To connect with Dr. Karan Rajan click HERE   To connect with Lauryn Bosstick click HERE   To connect with Michael Bosstick click HERE   Read More on The Skinny Confidential HERE   Head to our ShopMy page HERE and LTK page HERE to find all of the products mentioned in each episode.   Get your burning questions featured on the show! Leave the Him & Her Show a voicemail at [phone].   Shop LOAM at https://go.shopmy.us/p-43749215 and use code SKINNY20 for 20% off!    This episode is sponsored by The Skinny Confidential The beauty tool that started it all, redesigned to evolve with you. Shop Ice Roller at https://bit.ly/IceRollerSilver today.   This episode is sponsored by Beekeepers Natural's Go to http://beekeepersnaturals.com/SKINNY or enter code SKINNY to get 20% off your order!   This episode is sponsored by The American Beverage Association Visit http://goodtoknowfacts.org for more information.   This episode is sponsored by ARMRA Go to http://armra.com/SKINNY or enter SKINNY to get 30% off your first subscription order.   This episode is sponsored by The RealReal Get $25 off your first purchase when you go to http://TheRealReal.com/skinny.   This episode is sponsored by Ollie Go to http://ollie.com/skinny and use code skinny to get 60% off your first box!   This episode is sponsored by Just Thrive Get your health in check and save 20% on your first order at https://justthrivehealth.com/SKINNY.   This episode is sponsored by Bobbie If you want to feed with confidence too, head to http://hibobbie.com to find the formula trusted by parents and loved by their babies—700k and counting. Produced by Dear Media

The following podcast is a dear media production. She's a lifestyle blogger extraordinaire. Fantastic. And he's a serial entrepreneur. A very smart cookie. And now Lauren Everts and Michael Bostic are bringing you along for the ride. Get ready for some major realness. Welcome to the skinny confidential, him and her.

Aha. Hello everybody. Welcome back to another episode of the Skinny Competential, Him and Her show. Today we have Dr. Karen Rajan, who is a... doctor, health educator, and bestselling author of this book may save your life. And this is vital information. With over 11 million followers across social media, he has become one of the world's most trusted voices in gut and general health education. We're talking all about gut health, overall health, things that we can eat and do to make ourselves feel better and live better.

We love talking to Dr. Rajan. He is a wealth of knowledge and he has so much great information to share. We hope you enjoy it as well. With that, Dr. Rajan, welcome to the Skinny Confidential, him and her show. This is the skinny confidential, him and her. What are we embarrassed to ask our doctor? We're embarrassed to ask our doctors about poops, about periods, about basically anything gut hell related. So you're saying that people are embarrassed to go to the doctor and being like, I'm not taking a shit? Yeah, pretty much.

I mean, people, I don't want to make this sound bad, but people are literally dying of embarrassment because they're getting constipated. they may be bleeding from their bottom end, bloating. All those symptoms could be a sign of something serious, and they're keeping it hidden from their doctor, and yeah, they could be dying of embarrassment. So when you do go to the doctor and you get a checkup, what are the things that you suggest to ask your doctor? Be super data-driven,

because I've heard so many stories of people, especially women, get fobbed off, gaslighted, or just undermined by the doctor, any healthcare practitioner, because the doctor doesn't take symptoms seriously. Just because something is common doesn't mean it's normal. For example, we have normalized heavy periods or menorrhager. Heavy periods are common, but it doesn't mean it's normal. It could be a sign of endometriosis, PCOS, adenomyosis.

So keep a track, keep like a symptom diary of things, and take that to the doctor because data cannot be questioned. Is there certain things that women should ask and certain things that men should ask? So I think, you know, across the board, anything that is troubling you chronically for days or weeks or even months, and that's affecting your quality of life, whatever that is, whatever symptom that is, whether that's acid reflux or you're getting more constipated or it's bloating, that is something you should bring up with your doctor. What is the correlation that you have found, you were telling me off air, between endometriosis and fiber? So there's a bunch of epidemiological data, and this is like mass popular. data. And it's in the US registry looking at the link between fiber women's health, specifically endometriosis. And they found that the highest quartile intake that increased their fiber intake was associated with lower risk of GI symptoms with endometriosis. That means things like bloating,

constipation, pelvic pain, abdominal pain because of higher fiber intake, specifically low FODMAP fiber intake. That's like more gentle, sensitive fibers. So, you know, the fiber is actually key for more than just pooping. I also think that we have been so focused on protein, but I would love for you to explain why when you eat protein, it's so essential that you also eat fiber with it. Oh, yeah. I mean, protein obsession has been building for years. Most of the protein you eat is absorbed in the small intestine, right? That's the part of the GI tract that comes before the colon.

If you have way too much protein, some of that protein is not going to be absorbed in the small intestine. It's going to sneak its way into the colon and then your gut bacteria, they love to eat fiber. They're known as saccharolytic species. They just love to eat fiber. You suddenly give them like a protein meal. They're like, whoa, and they start fermenting that as well. And then when the bacteria start fermenting protein, which is not their primary fuel source, it's like putting diesel in a petrol car. they start producing other toxic compounds like indoles, which can be harmful to the gut lining

and cause leaky gut type symptoms. So keep protein controlled and focus more on the fiber. So we just dove in right away. You have a massive platform for those in our audience that are unfamiliar with your work. How did you become interested in this space in the first place and maybe share a little background? Yeah. So, I mean, my professional career has been a doctor and surgeon specifically focusing on gut surgery and emergency surgery. So anything in the GI tract, from bowel cancer, gallbladder problems, appendicitis, I've been dealing with, liver problems, and it is very common. One in five people worldwide have gut issues, digestive issues, right? And I actually had my own personal health journeys, and it was related to gut health

slash fiber. In 2018, I was like a young surgeon, 28 years old, and I did, did a random blood test because my friend was doing one and I found out I had high cholesterol. I was going to the gym, eating a lot of protein from kind of animal sources, but not eating enough fiber. And this high cholesterol was a wake-up call because I was like, I'm 28. High cholesterol should be something, you know, that an old person has. I had high cholesterol, and that had led to fatty liver disease as well because of the high cholesterol. So I was freaking out. Doctors are the worst patients. And why is it because you know what everything means? Because you get told. Yeah, you know what the worst.

worst-case scenario is. Like fatty liver disease, if you leave unchecked and one in five to one in eight people in the world have asymptomatic a fatty liver disease, right? It's a huge issue nowadays, especially with rising obesity rates. Fatty liver disease eventually, if left untreated and you don't control your weight, your cholesterol, it could lead to liver scarring and liver cirrhosis, and in the worst-case scenarios lead to liver failure or liver cancer. So I was like catastrophizing in my head. I was like, oh my God, I'm going to get liver problems, whatever. And so I increased my fiber intake, started like experimenting with fiber supplements to bring my cholesterol down, bring my fatty liver under control and reverse it. And that was my first intake into microbiome and fiber because

I was not taught any of that in medical school. What kind of surgeries would you have to perform on a regular basis. Probably the most common would be bowel cancer surgery, colorectal cancer surgery. And unfortunately, I hate saying this, but I saw younger and younger people be diagnosed with colorectal cancer in the last few years. We've met a lot of doctors on this show that start as surgeons. And a lot of them gradually move out of it. Do you think that's because of some of the things you get exposed to and have to see it just becomes hard over time? So if you look at health as like a spectrum where the surgeon is at the end of the spectrum when the disease process has reached its final stage and there's no reversal there. The only solution is to remove an organ or do something

curative or preventative in that instance. But actually, for example, we know that a lot of colorectal cancer could be prevented early by screening, increasing fiber intake, monitoring someone, just other lifestyle factors which have a role to play in, you know, colorectal cancer. So how do we get ahead of that? How do I, instead of treating a patient with colorectal cancer here or digestive problems, how do I get ahead in the lifestyle thing? So for me, that was huge. It's like, I don't just want to treat this, but I want to help them, like, to stop develop this in the first place. Yeah, so you're saying you're at the end of the train and at that point you're kind of like you're limited in options and it might be potentially at the end for that. It sounds like you wanted to be

part of the preventative part instead of the part that gets to the end. Yeah, I mean, sometimes you can live the healthiest lifestyle and still get cancer. You know, nothing makes you immune from something like that. But we know that a bunch of chronic diseases, like a significant proportion of that, can be prevented or at least lessened by lifestyle factors. So yeah, 100%. I didn't see, you know, medical school and the medical institution isn't geared towards preventative, you know, preventative health. It's always geared towards proactive, well, not proactive, reactive health. You've got the disease, you've got the injury, let's fix it. And that is just how systems around the world are designed. And we're not even taught that in medical school. We're taught disease,

pathology, never strategies to improve symptoms. So everything I know about preventative health is all self-taught after medical school. That was one of the scariest things that I think we've learned as just average citizens. And again, talking to people like yourself that have medical degrees and have gone through the school and have become actual doctors is how little preventative medicine and nutrition that you guys are taught. And we have caught flack on this show for saying like, hey, like you can't always just go to a doctor because to your point, and we've had, you know, we've had so many people in your space to come on the show and say this. Like, you guys just don't get taught a lot of this. Like, we, the average person that listens to this podcast, maybe just has as much

information is the average doctor going through medical school when it comes to preventative and nutritional information. Oh, no doubt. Not dumbing down doctors, but you know what I'm saying. No doubt. And I think, you know, one of the skills which I did have was being able to critically appraise research and studies. So I knew that enough so that I could do my own research and find out what's useful, what's not. Like, you know, for example, for years, I used to think of fiber as one thing, right as it's the same as thinking about vitamins as just vitamin A but you know there's vitamin B C, D, E and they all do different things for health. Same with fiber. Fiber is a bunch of different things. It's a family. One type of fiber has a different health function to another type of fiber.

I didn't know that until five years ago. Do you think that one of or two of the reasons that people are getting colon cancer younger is because they don't have enough vitamin D and fiber. I've heard this from multiple people who've come on the show. Vismundee has a role to play in colonic health for sure, but there are so many factors. Like, it's been shown in research that getting at least 300 milligrams of calcium a day, making sure you have that through dairy, through plant foods, whatever it is, is also beneficial for colon health, can actually reduce your risk of colorectal cancer. Fiber is obviously like just rent for your colon. Like, you have to pay that. Fomented foods as well has a role to play.

But other lifestyle factors, smoking, alcohol, but genetics is a huge component. All of those things are critical. But if you're looking at the top of the tree, what is the most important thing that we can do, regardless of age or genetics, that is 100% eating more fiber because we are literally in, you know, an epidemic of not even eating enough fiber, let's alone eating enough different types of fiber. That's like another level. So if someone wants to implement more fiber tomorrow, how much do they need? And what would you do?

So this is really interesting. You've probably heard that most guidelines recommend, oh, get your 30 grams of fiber a day. Yes. That is based on old, outdated advice. Like, that is bottom of the barrel stuff. If you look at the research, which looks at fiber, there are these graphs, like dose response curves. Okay, if you eat 10 grams, you get this benefit. 20, this benefit. And it usually, like in the research, it caps off at around 30. But if you look at those graphs closely, there is ongoing yield and benefit of fiber to your health beyond 30 grams. And this is where it gets even more interesting. If we look at some of the healthiest populations in the world and one of the healthiest populations in the world that have the lowest rates of diabetes, of high cholesterol, cardiovascular disease, dementia, are these tribes which live in Africa in Tanzania, the Hadza tribe. They eat seasonally, so they eat different types of fiber, depending on the season, wet season, dry season, and they eat 120 grams of fiber a day.

And they are some of the healthiest people in the world. But what are they eating that, yes, I need to understand. It's really, like, I feel like what is that? Is it a dragon fruit? Is it a pomegranate? What is that? All of those, I mean, they don't get those kind of foods in that region. They're eating like the sort of roots and tubas like cassava, beans, wheat, wheat.

corn, things like that. And the reason those kind of fibers are really important, and it's come out of a lot of our modern diets, is because they ferment really slowly. If you think of your colon, right, you have your colon which goes up here, that's the first part of the colon, and the second part goes across, the transverse colon, third part goes down, the descending colon. The foods we eat, which are fiber rich in the modern diet, right, like apples, that's a fast fermenting type of fiber, and that ferments here, but it doesn't make it all the way here. The bacteria, which live here, are the most beneficial bacteria, and the greatest number of bacteria live here.

So we need more of the slow fermenting fibers, beans, corn, wheat, cassava, roots and tubers, potatoes, we're missing a lot of that in the average diet. What's cassava? It's like plantin. Don't they use it in a lot of chips and stuff? Yeah, exactly. You're like a sava flour, right? Exactly, yeah.

It's like a root. vegetable, kind of like a potato, but even more like starchy and like, you know, like maybe a bit bitter and hard to eat. Don't they use it in like tortilla alternatives? Yeah. You can, yeah, it's correct. Yeah, like a gluten-free type thing. How much can you supplement of that amount? Of fiber? Yes. So, you know, you can supplement kind of as much as you want. I mean, it's always like food first, right? And you build your foundation on food and then you supplement with other things. Like, I eat through my diet alone, I eat around 40 to 50 grams of fiber a day. And I've built that up over years because of my health condition. And I still supplement in the morning

because it gives me like a baseline. So I add it to my morning, I add a fiber supplement to my morning coffee. I know I've got 10 grams of fiber. So if I'm busy, can't be bothered to meal prep. I'm traveling or I'm going out with friends and I'm having a steak or something. I've got my 10 grams and I don't have to hit that 30 gram with too much discomfort. In your product, how many grams in it per serving? 10 grams. So it's like a third of your baseline recommendation. And we know, based on research, having 10 grams of fiber extra per day reduces your risk of colorectal cancer by 10% that is research. So when you say you get around 40 grams a day, what is your, if you don't mind me asking, what does your diet look like where you're able to get those numbers? Easy wins for fiber

because I'm like, I'm pretty busy. Like I've got a kid on the way. You've got 11 million followers off. You're busy. Yeah, and I've got a startup and I've got this. I'm super busy. And so I start the day with just a cup of oats, right? A cup of oats, which is like overnight oats, is five grams of fiber. And then I put in two tablespoons of chia seeds into the overnight oats.

Two tablespoons of chia seeds is 10 grams of fiber. You have 15 right there. That's 15 grams. And if I really want to go a bit more like fiber max that, I can add in a cup of raspberries or blueberries just to top that up. That is five grams of fiber. So I could get 15 to 20 grams just in that breakfast alone. And then I usually have like a cup of morning coffee like mid-morning.

And I put in like a fiber supplement in that 10 grams. You can use this one? Yeah, because it just dissolves with no taste at all. So I didn't even know it's there. It just tastes like coffee. The hot coffee won't hurt the integrity. Yeah. One of the reasons I formulated it this way was that it would be heat stable.

So you can actually bake fiber cookies or cakes. Oh, that's cool. I add this to my pasta and I'm making it as well. So just an extra bit of fiber if I want. I'm going to put in the kids waffles. Yeah, you know what? My friend uses loam for her kids, and kids are so fussy with fruits and vegetables. You can't get them to eat fruits and vegetables. She just put it in their water. It dissolved clear. They didn't even know it was there. Quick break to talk about one of our favorite partners, and that is beekeepers natural's flu season is upon us. It feels like everybody is sick. I know in our offices, people are in, they're out. It's all over the place. It's a mess. Kids are going back to school. And the sicknesses that are going around these days are nasty. This is why Lauren and I swear by Beekeepers Naturals products. We love their throat spray their propolis. We've had Carly, the founder of Beekeepers Naturals on this podcast twice, talking all about the incredible benefits of using bee products and specifically their propolis. Every single time we do a podcast, we take their throat lozenges, and of course, when we travel, we swear by the throat spray.

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And now, get $25 off your first purchase when you go to the realreel.com slash skinny. That's the realreel.com slash skinny to get $25 off. Start shopping now at the realreel.com slash skinny. I have three tricks. The first trick is I make Mommy Waffles. And in it I put Zen basil seeds, which have like 15 grams of protein. I'm going to add your product so I get 25. Wow.

And you do some banana, some oats, and some eggs. And that's that. Then I do the syrup. And in the syrup, I put omega-3 DHA that tastes like lemon. So they think Mommy put. me put lemon in this. Is this your first kid or do you have first kid? Okay so you're going to need to know these things. The last trick what I'm going to do with your product is I do mango water

and I do aminos. So mango aminos but then I'm just going to add the fiber to it so they get there's so many little rebrand tricks you can do with kids where you're like look at it's lemon syrup. They want to eat the things that kids want to eat and so you've got to start adding the things to make them a little bit better. What are you doing with the French toast that you make? Are you doing anything strategic? It's not good for you at all. It's not good for you at all. the French does, but that's a once in a while thing. Okay, so it's, I think sometimes, and the reason

I ask specifically about what you're eating is, and the same thing with the protein conversation, people get overwhelmed with how they get all the grams. When you say it like that, just in that simple meal, you could get 20, 25. You know, like, most people think that fibrous fruits and vegetables, but it's different categories, right? So you can even have, like, bad food or snacks and still get your fiber. So, like, 50 grams of 70% dark chocolate, which is like three or four squares is four grams of fiber. One tablespoon of cacao powder, you put it in your hot chocolate or whatever, is two to three grams of fiber. Like a portion of popcorn can be four grams of fiber. So if you have some chocolate, dark chocolate and popcorn, you can smash eight or nine grams of

fiber and not even worry that, oh, it's super healthy or like not, you know, exciting. So as you increase fiber, I'm going to move it to the bathroom discussion now. What is a, healthy amount of times to deprecate. Well, no, come on, Michael. You can't ask it like that. Just ask it like poo. Come on, Michael. I can defecate.

I'm trying to be medical. I'm trying to be medical. I'm going to be medical. Let's just ask the question, Michael. Okay, how many times a day should you be taken a shit? And what should the consistency be? Okay, so there's two things, right? There's like quantity, but also quality.

Like, we need to be quantitative and qualitative. How much to do? Yeah. Like, okay, I'm the worst person to ask about poop because I get so deep in the weeds. Let's get in the weeds. Right. That's what you're here for. That's my entire life.

You're the guy. Yeah, that's my entire life has been professionally and personally as well. The usual guidelines suggest like three times a day to three times a week is considered like the Goldilocks range of normal, right? If you're above that or below that, you're usually slightly out of normal. one component of it, right? The three and three. But also the quality. Like you could be, and this is mind-blowing to a lot of people, you could be going to the toilet every single day and still be constipated. Because then it's the quality. Have you guys ever heard of the Bristol store scale? No, I don't think so. So it's like a, it's like a visual chart and like maybe

you can put it up on like some of the videos or whatever. It goes from type one through to type 7. Type 1 is like little mortisers or rabbit pellets. Oh, it's the visualizations of the excrement. Yeah. Are you going to pull the thoris out? It's like, okay, go ahead. Lauren, I'm very, I'm well red. I'm well-rounded person. So you've got like those like rabbit pellets, mortisers is type 1. And then type 7 is like a chocolate milkshake. It's just runny. Right. And then type 3, type 4. And I don't want to put off chocolate for you guys. But like type 3, type 4. But like type 3, type is like a Snickers Mars bar, you know, like a sausage shape. That is like the perfect poop. And then that goes from constipated to diarrhea. And in the middle, that's like the perfect.

But also, are you having any bloating? Are you straining? Are you experiencing any mucus discharge? Those are all qualitative things. So yeah, you could be pooping every day, but is it uncomfortable to poop every day, which suggests you could be constipated or just not normal? So those two things combined, you know, form, like, you know, how well you're doing? I guess on the sides of the scale, if you're constipated, what is the likely culprit? If you're having diarrhea all the time, what is the likely culprit? And how do you kind of move to the middle if that's where you want to be? Yeah, so many factors.

Like constipation is decided by so many different things. And I think about it, like, you know, an inverted pyramid with like the big base at the top would be the most common culprit for most people is likely fiber. Then it's like maybe mortality issues or like hydration issues where you're not drinking enough water. Because good stool needs more water to make it like, I think it's probably wrong word, but like big and juicy. You need like juicy poop so they just slide out. Very scientific. Yeah.

And then the third thing would be like any activity. Like if you're constantly sitting at your desk or not moving, you're not getting the contractions of the intestine. So it's going to be sluggish bowel. And then the fourth thing, which virtually no one realizes, your sleep and bowel. are connected. You've got a clock in your brain, the biological clock. It's called the supra-chazmatic nucleus, and that determines how tired you feel, how energize you feel throughout the day. You know, your energy levels fluctuate. You've got tiny little clocks in every cell in your body, including your gut. Like, you've got time clocks in your rectum, which all depend

on the master clock in the brain, which coordinate the release of various hormones. So, you know, like, you suddenly fly out to London for your friend's wedding. You're in a different time zone, you're six hours ahead, you feel jet lagged. It's not just you that feel jet lagged. Your gut gets jet lag. You get intestinal jet lag because of that time change. So you can get travel constipation or diarrhea because suddenly it doesn't know what time zone it's in. It doesn't know when to release the hormones to poop and all those things. Wow, Michael. Does that everything you want to know about a big juicy pill? No, let's keep going. I'm scared. I asked because I think, you know, if gut health is the cornerstone of good health,

I think this is an important topic for people to think about, right? And if you don't, I think you could obviously, like, you end up at the end of that line you were talking about earlier. A lot of people on GLP-1s are constipated. Is that okay? I mean, what do people need to do about that? The GLP-1, like, it works in the brain. It works in the gut hormones as well.

And your appetite, so there's a couple of things. The GLP-1 drugs naturally slowed down. the gut. So you get slowed emptying from the stomach and you get slowing of the contractions as well. That can cause constipation. The second reason is when you're on a GOP1, your appetite decreases. And that's one of the benefits that people want. When your appetite decreases, the number one thing which gets cut out first is fiber. So you've got the slowing down of the gut, plus you're less hungry and you cut out fiber. You've got a heady storm where you're brewing some serious constipation. So when someone is on a GLP1, you suggest they up their fiber?

100%. Like protein and fiber are things which if you're on a GLP1, fiber, protein and resistance you need to be doing for your gut health because the GLP1s can also cause a shift in the gut microbiome, right? And that can actually worsen inflammation in the gut. So you need fiber. And the problem is, right, I've seen people on GLP1s. Sometimes you just don't feel hungry and you don't want to have a meal with fiber or

protein. So in those situations, you're looking for like low calorie hacks. So whether that's like a fiber supplement to just top up your levels or getting low calorie fruits, like the best low calorie fruits would be berries. You get a high amount of fiber, low calories, and it's not too filling, so you can still hit it. Like you need those hacks as a JLP1 user. What has your audience been most shocked by when it comes to symptoms that are related to poor gut health? I think the most shocking, which a lot of people don't realize, especially women, would be a lot of hormones. or driven symptoms, heavy periods, bloating around the periods, menopause symptoms, disease-specific conditions in endometriosis.

You know, they can all be driven by low fiber state and gut dysbiosis where there's like abnormalities in the gut microbiome. Have you, and I brought this up a little bit, and I don't have the science on it, but it seems that many women complain about gut issues. Maybe they're just complaining more than men. Maybe men don't talk about it as openly. Do you see a correlation to women versus men having... more or less gut issues?

Yeah, interestingly, in the research, and there's not a ton of research done on this, but actually women have more gut diversity in their bacteria than men, which is normally associated with better gut health. The other problem is, women are unfortunately predisposed to a higher risk of gut issues.

One of the reasons for that would be because they go through way more hormonal changes on a monthly basis, but also on their lifetime basis. monthly periods, the fluctuating estrogen and progesterone causes crazy gut issues because you've got estrogen receptors in the colon. So crazy fluctuations there.

Women may get pregnant at some point in their life. So they've got like a tiny human literally squishing their intestines and causing problems. Then you've got menopause where you get a, you know, slam dunk of estrogen and that drops off a cliff and you get gut problems from that. What do you guys do? I mean, geez. And I'll tell you what we do, but it's not going to go over well. I'll tell you what we do.

Nothing. We have to be around a lot of it. It's a joke. It's a joke. It's a joke. And also women have longer colones than men as well. Oh, that's interesting. Yeah.

Well, and again, I was curious because, and again, maybe women are just more vocal about it. Maybe us men are just too dumb to understand what's going on in our systems. But doing this show for as long as there's been many conversations around gut health with women. And you don't hear as much as often from the men. maybe they're just not explaining or they don't know what's going on. I didn't know this until a couple of years ago, and this is fascinating. So estrogen is processed and planned to be released from the liver, right? So in the liver, it gets tagged.

And then the estrogen gets tagged in the liver and then gets sent into the intestines and into the colon. You've got special types of bacteria in the colon, which can untag that estrogen and allow it to be absorbed into the colon and then back into the bloodstream. So you can get higher amounts of estrogen depending on if there's an increase in that type of bacteria that can do that. And more estrogen is not good because it can mean more symptoms related to estrogen and worsening of heavy periods, pain, all that kind of stuff. Does high estrogen is that contribute to breast cancer? It can be in specific cases. Like breast cancer is obviously multifactorial. Genetics is like the huge component, but also exposure to estrogen over a lifetime, like, you know, having later menopause.

earlier puberty in women, all those things are risk factors for breast cancer. So yeah. When you take fiber, doesn't the fiber hook to the estrogen and help usher it out of your body? Is that true? Yeah. So there's two things fiber does. Fiber shifts the microbiome. So you get less dependence on that type of bacteria, which can allow more estrogen to be absorbed, which is good. And also it kind of like, yeah, it kind of packages up that estrogen, same as it does with cholesterol, and allows it to. to be excreted and not absorbed. But it's got to be soluble fiber,

which is fermentable and can have a manipulation effect on the microbiome, not insoluble fiber. What is this soluble? This is pure soluble fiber. Okay, so we love that. You know what? People, when they're choosing a fiber supplement, they don't know what to look for is the problem.

And Cillium Husk has no prebiotic value. It doesn't manipulate the microbiome at all. That's really interesting that you say that because every time I've tried to take that, it's too overwhelming to me. that's why yours to be able to just mix it. I put it in my aminos. It's like so easy.

I don't need to even froth it, which is so great. So back to your question. So what do you see online that you kind of just call BS on or you don't take seriously or you think it's... Some viral health trends. Coffee animus. Okay. Right? Like coffee only belongs in one orifice.

I'm really glad you said this because people always bring these up to me and I go, that looks like a lot of work. I'm really open to things, but the coffee up my ass, I'm like, so open to things. the coffee up my ass to me feels like I would do it wrong. Like we have a pretty comfortable marriage. We've seen each other in a lot of situations. I feel like if she came in and I was laying on my back in the bathtub with the tube, but my ass shooting coffee out, I don't know if I'd get through. But like to each its own.

So go ahead. That's bullshit. Yeah, it's bullshit and can be harmful because, like, coffee is acidic and, you know, your back end is sensitive. The membranes are delicate and the acidic coffee can actually worsen, you know, some irritation in that lining. Colonic enemas for the average person, like having, you know, know a hose pipe up your back end and being flushed, that is dangerous.

I've seen how that can actually cause injury and burst someone's colon. I've had to deal with that. I've had to operate on someone with a burst colon because they did a colonic. Have you ever had to operate on someone who shoved a gerbil up their ass? Not a gerbil, but they shoved a shower head up their ass. We caught it on a CT scan because we couldn't even see the showerhead. The person, the elderly gentleman came in with severe abdominal pain, and we couldn't really figure out what's going on.

So we got a CT scan. What does someone say when they come in? They say they tripped and fell. I've read about it. I've read about this. They say they tripped and fell, right? Yeah, 100%. No way.

Yeah. That's classic. They're just embarrassed. They're embarrassed about their sexual, you know, proclivities. And they're just like, yeah, I slipped or someone abused me or whatever. So did he say I have a shower up my butt? No, he didn't say anything. He just said that I've got severe abdominal pain and I don't know what's causing it.

We got the CT scan. and there was like a huge metallic foreign object floating in the abdomen and there was gas around the colon where there was a hole. And I had to go back to him and was like, what have you put in there? And then he was like, oh yeah, I did this. Oh yeah, I forgot about that detail. The detail where I shoved a shower head up my ass.

There's a lot of people that put the gerbil because when the gerbil dies, it vibrates. This is what? No, this is not true. This is an urban legend. Google it right now, Carson. I knew someone that was a doctor, acupuncturist that says when the gerbil dies, they vibrate and it gives you a nice vibration.

Carson, Google it right now. This is a South Park episode. Anyways, listen, this is serious. Any of you were serious journalists, Lauren, okay? Go back to your, that's a true story. Go back to your viral health trends. Okay, so another thing would be the use of probiotics to general wellness, right?

So if anyone is considering using a probiotics, a probiotic, make sure your probiotic has the genus, the species, and the strain. So there's three parts to the thing. So like the first two named and then like the third one will be a combination of letters and numbers. So that would be something. And make sure you can look up that word, look it up on like online and see if there's any research for that specific strain and for what condition. So you're saying some people get a probiotic and it doesn't have the right strains or the right species. Okay. So both of you are healthy individuals. If you took a probiotic, for general wellness or to optimize your gut,

it's not really going to do anything for the average person. If you've got a specific condition, like you've got IBS and you've got bloating with IBS or you've got traveler's diarrhea, there's a specific type of bacteria or probiotic, which can help for that. So we're not at the stage yet with the science where you can just take a general wellness probiotic. That's the future. What brand do you like? Of probiotics?

Yes. I don't take probiotics. And the reason is I want to think, think of your gut like a garden, right? Right. Probbiotics is like just keep buying more flowers and planting in your garden. But you're not watering your garden and you're not nourishing the soil. Fiber and prebiotic fiber is like nourishing the soil and fertilizing it. So the existing flowers that you already have, like your in your natural bacteria can flourish and thrive. That makes so much sense. That is the best description that anyone has ever done on this show about fiber. That makes so much sense. I'm sure you, with the platform you've built, get a ton of outreach from other people in the health and wellness community. What filters do you have in place with who you decide to collaborate with? And what are some things that you kind of look at as red flags and stay away from to keep credibility?

I think the, you know, one thing I was taught by my mentors, both in medical school and when I was a doctor, if you truly know a subject with serious expertise, you can dumb it down so anyone can understand. So I don't try to use big words or fancy language because I want everyone to understand it, whether, you know, and you'd be surprised, the average reading age in both the US and the UK is around like, you know, a 9, 10 year old level. So you really have to be simple for everyone to understand. And I look at people who can simplify that complex language number one. And are they saying things which correlates with other people, other kind of like, experts, but also the data and literature. And it's not exaggerated or like hot takes where it's like

black or white. Because science and health, there's always nuance. There's a couple things. When I read a book and the words are so big, I put it down. There's almost like a self-righteous undertone when you feel like you have to use like these huge words. Also, sometimes I notice this in certain fields. People almost want to take a simple subject and overcomplicate it so they sound more smart. You know what I mean? You know, like in an investment. It's like if you can't explain it in a layman's term way. In an investment scenario, someone comes to pitch their idea and it takes 30 minutes for you to understand what they're working on.

No. Like, you should be able to explain what you're doing in literally 30 seconds. Correct. Correct. And if you don't, it's probably too complicated or not a good idea. I always say I'm like, be able to explain it to your Uber driver in one minute. I really like to give my dogs the best highest quality ingredients. And you guys can do this too.

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Plus, they'll offer a happiness guarantee on the first. box. So if you're not completely satisfied, you'll get your money back. That's OLLI.e.com slash Skinny, Intercode Skinny, to get 60% off your first box. Quick break to talk about one of our favorite longtime partners, and that is Just Thrive. They have a new gut essentials combo that is absolutely going to change the game for you. If you're somebody who's accepted, bloat, cravings, and that post-meal crash after eating as your new normal, I'm challenging you to feel better. And I'm giving you the cheat code, the Just Thrive Gut Essentials bundle. It pairs two clinically

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This is wild. But did you guys know that over 90% of percent of new parents on Bobby are combo feeding? So they're using both breast milk and formula to feed their baby. Whether you're exclusively formula feeding, combo feeding, or you just want a backup can in the pantry, Bobby is the formula to deliver safe and complete nutrition to your baby's bottle. Bobby's organic, its European-style formulas are clinically crafted to mere breast milk. They have naturally occurring MFGM, DHA, and Kooline to support brain development. They also have a 60 to 40 way to casein protein blend. for easy, healthy digestion. Every single batch goes through 2,000 plus safety and quality checks

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and loved by their babies. 700K and counting. That's highbobby.com. Introducing the skinny confidential ice roller, reimagined. Think sleaker lines, a softer pink, a custom buttery dust bag, and a silver roller, not pink anymore, that is ice colds. I wanted to do a juge on the iconic ice roller. I wanted to update it. This ice roller for me has always been more than just a tool. It's about helping us depuff and sculpt and convent. calm the skin in a way that feels intentional. And I wanted the ice roller to feel evolved. It's changed.

You've changed. So yes, the new gorgeous, stunning beautiful ice roller is still going to do the same things. It reduces puffiness and redness in your face. I used it this morning. Before I put on my makeup, it definitely helps with the under eye bags. Of course, it helps boost circulation and radiance. I just feel like it really helps stimulate blood flow and gives me that tighter, more radiant skin. And then it also is known to give you a smoother, tighter-looking skin. So what I like to do is I like to combine facial massage with cold therapy. And this really helps give you a really nice foundation before you even apply your skin care. This ice roller for me is a full circle moment. I think that a lot of you bought the ice roller, you know, five, six years ago when we launched it. And now I am

launching something that feels more in alignment with where you're at. It's a lot of you're at. It's It's so beautiful, you guys. It's just softer and more effortless in every way. And I really put my own touches on every single little step, from the packaging to the colors, to how it feels, to even the roller. It's all been elevated just for you. So the ritual, the Lauren ritual, is you do cold therapy to help fight inflammation. You roll it. You glide it across your face. I put it on my jawline, my neck, I roll it down. Your skin is just going to appear smoother and tighter before you go in for the kill with the skin care and the makeup. Don't skip the cold therapy. The new ice roller is an upgrade designed to meet the standards of today. And I hope you guys love it as much as I do.

This is the beauty tool that started it all. Redesigned to evolve with you. I'm showing it on YouTube, too, if you're on YouTube, if you're seeing me visually. Get it why it's hot at shop skinny confidential.com. That's shop skinny confidential.com. Out of all the content that you have done with 11 million followers across has been the most viral and why? The one of the most viral things I've done is I reacted to a video about how you can get your kids to eat more vegetables. Well, these were neck and neck. How to get your kids to eat more like fiber, basically. And number two, I reacted to another video.

where a mom was giving her newborn kid like bone marrow. And both of those were like 20 million views each or something like that. And as someone who's like about to have a kid, I'm super interested in a child's microbiome. Because we know the microbiome can set someone up for life. It's not just about pooping. It's about autoimmune disease, cancer risk, allergies. We know that if a kid has a robust microbiome from a young age,

they can have a reduced risk of autoimmune disease, allergies, a stronger immune system. And if you expose them to a variety of foods from a young age, you can actually eliminate some allergies. There was a huge study called the Leap Trial done on peanut allergies. And it suggested that if you introduce after the weaning process, one year onwards, any peanut puffs, peanut butter, you can reduce a child's peanut allergy risk by up to 70% when they're an adult. I have a confession. Perfect podcast to do this on. With all three of my children, not my baby yet, because he's a little too young. But at one years old, I eat some peanut butter and then I eat almond butter and I give him a kiss. And I did the same thing with honey. Can you just like put it a little bit on? You got to like put in your mouth and slathering? I know, I eat a scoop of honey. Put a little bit on my lips and give him a kiss. Wow. And this is my, this Lauren Bostic science, it had no allergies. No, but the long story short for all of our causes we've exposed.

them to dairy. We've exposed them to honey. We've exposed them to peanut butter. And we do it early. And again, like we are not doctors. We're not giving medical. But in our situation, we've done that. And I think that, at least in their case, they've avoided those types of allergies. Diversity as a kid encourages diversity in the microbiome, which is huge. And I want to ask, do you have pets at home? Yes. In the bed. Yeah. So we know from, again, the same data, Yeah. Kids who live in non-urban environments and who either live on farms and who are exposed to animals from a young age and who have siblings, all those four things and have dietary diversity, are more likely to have a reduced risk of allergies, autoimmune disease and just better gut health and health in general, longer term. Why did the two things that you put up go viral? Like, what was your answers to each of them? The answers were one in terms of the bone marrow one.

It's like, obviously, I'm not encouraging bone marrow specifically, but just the fact that you're introducing a child from a young age to different textures. So they're not going to be picky with their food longer term, which means they're more likely to have a range of foods growing up. And number two, you're encouraging their microbiome to already experience different things from a young age. So different foods equals different microbes that are encouraged. So my baby, my baby bond, he's eight months.

his first food was bone marrow and liver. So you like that. You like that. I can't speak to bone marrow and liver specifically. Okay. But like... You like the diversity of introducing food. Yeah.

Like I've never had liver or bone marrow just because no one's ever given it to me. But... Listen, there's a place here in this very building called the Kimberly. Oh. They make the best bone marrow. And it's like if you're not a big bone marrow guy and you're not used to it, it's like you can have it and get just like a great introduction to it without... Also, don't know if I want to blow up that spot because I do like going there.

But it is... I'll give him the show. Okay. Yeah. I'll check that out. What was the other viral clip? The other one was like about the, you know, like how do you get kids to eat more fruits and vegetables and fiber? And it was basically like how you gamify it, right?

When I was a kid, I remember, I ate loads of like fruits and vegetables because my mom would chop it up into like little strips and I'd just have like dip it in hummus. And it's snackable. You make it snackable. You put it in like fun shapes and sizes. and you just leave it on the table, no pressure, no judgment, no guilt, you just leave it there. If you leave fruits and vegetables in like snackable form just out and about, the exposure to it and the fact there's no judgment or pressure or moral value attached to it, psychologically allows them just to kind of like grab and go and snack.

So my doctor is amazing. She's very like eastern and western. She's really great. And she told me exactly what you just said. And what she did is she went to, I think, Home Depot. and she got a salad bar like a cold salad bar. Like the countertop fridges

where you could put like different salads and she puts, she cut up all the stuff, the vegetables, the fruit and she puts it in there and she leaves it out in there for like a couple days and the kids just go by like a salad bar.

Because it stays refrigerated on the counter and they can just reach in and grab what they want. Like what you're saying. Like a hotel. Like a hotel. At this house that we're at now there wasn't like the right place for it

so I was like how can I do this? So I went on Amazon and got like the containers and we just cut it up. And my kids, vegetables and fruit and cheese and all these things has gone way up because they feel in control of making themselves a snack plate. Yeah, what we've done is we've limited some of the more like junk food in the pantry. We just got it out and they just now they open the fridge and they grab that kind of stuff

and you give them some kind of dressing. Again, this is anecdotal, but I know it works. My, you know, nephew, he's very picky with food. He's autistic. And I did this thing. where I was just doing a ton of research on like psychology and food behavior and eating like that. And I just made like a little paper sashay. I just drew like a kind of like a superhero character and I just stuffed it full of like carrots,

almost cut up like fries and gave it to him. And he hates carrots. He hates anything that has a bright color, but also has like a certain mouth feel to it. He crushed the carrots because it was like in this kind of superhero type thing. And kids respond to cues like that. Like how you package something is so influential and how they, approach food. I love the idea of just laying it out before the meal and not putting any pressure on it. And my thing is if they don't want it, like I'll eat the cucumber and hummus. So for people that

are, you know, consuming shows like this, consuming content like yours, on social media, short form, long form, looking for medical advice, looking for how to live, like, what are some of the things that you would push them towards and some of the things you would caution them against? In terms of like food or... Just what they should, you know, what types of things they should follow and believe in and what kind of things they should be cautious about. Yeah, I mean, like, trends are so prevalent these days where it says, like, you must eliminate this, you must do this. It's about balance, right? Like, you know, the Pareto principle suggests that you get the most value from 80% of, like, the boring basics. And 20% may be things like supplements or, you know,

things like saunas, which are all good, but they're the 20%. We have known all the things that work for decades. Don't smoke, don't drink, keep a healthy weight, move. movement, sunlight, get enough vitamin D, get enough fiber, plant food, go to screenings when you're called for cervical cancer, colorectal cancer, go to those screenings, you know, childhood vaccinations, social connections, all of those things we know. And then also there's like things we can't change, like genetics and, you know, your kind of socioeconomic status, like you know, your zip code basically. But all those other things, they are going to be the biggest levers in your life. Once you got those sorted,

Then you look into supplements and then your nutrition, all those sort of things as well. What's fiber maxing? Fibre maxing is just trying to, like it says, max out how much fiber you can eat. I am a big fan of this one trend. I think it's one of the TikTok trends that's not going to send you to the hospital. Okay. Right. And the only caveat and caution is, if you're not used to eating a lot of fiber, slowly ramp it up.

Okay. Five grams extra a day for a week. Next week, another five, week after, another five, and just slowly ramp it up. Because your gut bacteria, if you're not used to fiber, are just not used to processing that amount of fiber. So they need to develop the enzymes to be more efficient in dealing with that fiber. So just give it to them slowly. Before you go, what are some tips in your book? This book may save your life.

This book may save your life as, you know, I talk about the human body top to tail. I liken it to like a glitchy machine. Okay. And it's, you know, just breaking down and trying to destroy us. And it's like the simple buckets. Sleep and wake times, keep that consistent because that can literally regulate your entire life from your mental health to how well you poop. I like a 7.30 bedtime.

7.30 p.m. Wow. I will literally get better. Listen, you're on your way, buddy. Wait till these kids. I just, you know, when you have a kid. So, yeah, I mean, sleep is key, but appreciated. Like, I'm probably not going to sleep the next year. And it's, you know, like, I think the gut microbiome is just so underappreciated still because we know it has a link to every organ system in your body, from your liver to your kidneys,

to your brain, to your immune system, to your skin. If you've ever had or know anyone with acne, psoriasis, exma, when their gut is off, their skin is worse. It's because of the gut-skin connection. So you can tell someone's gut by their skin? I think of the skin as a billboard to what's going on in the gut. Interesting. I love that. And so we... How's my skin?

How's your skin? Amazing. Oh, okay. So that's good. That's good. Okay. It's like a, you know, if your gut is inflamed, those inflammatory molecules will go through the bloodstream and hop off in different places.

It might hop off in the brain and cause you to have low mood, anxiety. It might hop off in the skin cells and show us inflammation in the skin. It might stop off in other places as well. and cause problems in, you know, other areas. And with the new book, this is vital information. Yes. This is the follow-up and what's different in this one? This is more like things we're too embarrassed to ask our doctors.

Everything from period problems to menopause issues, to gut problems, to cancer, talking about death and advocating for patients and giving them things to tell their doctor. So how would you use this book? You could literally pick up. Like, for example, you're on the penis page, right? And that's all about men's health. When a guy, okay, you say you go down to Terry Blacks to have some barbecue with your friends, with your guy friends. Guy friends, you're not going to talk about your prostate.

You're not going to be talking about your balls or your dick. Someone might have those problems, but they won't bring it up at all. They won't even talk to their doctor about it because they're embarrassed. Same with women. Like sometimes women may not talk about their lumps or other issues going on. We don't talk about oral health. We don't talk about menopause and the problem. So each chapter is different and you can pick it up.

There must be a sign because I turn to the male health page. I was like, let me flip ahead and then I turn to the body mayhem. Yours is bigger than that. The body piercing on the penis page. So this book must be telling me something. I will dive in and I will head to Terry Blacks and report back to you. Where can everyone follow you? I think what you're doing is absolutely amazing.

Dr. Karin Rajin, unfortunately everywhere. And you guys gave us a code. For loam. Yes. Skinny 20 for 20% off, loam science.com. I just mixed this in my. My mango aminos, which I have every day. Everyone knows that. And it doesn't literally taste like anything. And it's not clumpy. And I didn't, I can't get over that I didn't have to use a frother.

That's unique. That's like, to me, that's the main selling point because I, I'm quick. I got to go. Because that's the problem with some of these other things is like you don't want that. You just want it to go in real quick. So you could take this any time in the day. Any time of day. What do you take yours? I take it with the coffee in the morning. And the thing is with fiber, if you're consistent with it and have it every single day, you stack up the benefits. And unfortunately, you know, not a lot of fibers have the high dose of 10 grams. They don't have the diversity. So when you drink this, you're getting six different fibers, not just one. Well, I just did two packs too. Two packs. So you've got so much diversity there. And the fact that most people can't stick to something

because it either has, you know, like a really strong taste or it's chunky and gritty. For me, when I was messing with fibers back in the day, that's my problem. problem. Like I couldn't find something that was just tasteless and invisible. What I'm going to do with this is I'm in a habit stack it. So I already do two, I already do my aminos, but then also another way I would take this is with my magnesium water at night. It literally tastes like nothing. I like that you can take it with the coffee because each day I have one coffee per day. And you're saying no matter how hot the coffee is, this is stable. It's heat stable. And in fact, I, my favorite thing to bake is banana bread. I put in two packs of loam into the batter when I make it. So I've got

High fiber banana bread. Smart. Yeah. I'm going to do it. Thank you so much for coming on. Thank you guys for having me. Thank you for making the trip.