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The Human Upgrade: Biohacking for Longevity & Performance

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PodcastThe Human Upgrade: Biohacking for Longevity & Performance
Publisher/creatorDave Asprey
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About this episode

Your gut microbiome controls your brain chemistry, your stress response, your sleep, your metabolism, and your ability to lose weight, and most people have no idea how broken theirs actually is.  Watch this episode on YouTube for the full video experience:  https://www.youtube.com/@DaveAspreyBPR   Get 20% off your next purchase of OMNi-BiOTiC with code ‘Dave20’ at:  https://omnibioticlife.com/   In this episode, Host Dave Asprey and microbiome expert Hannah Kleinfeld break down the hidden gut science behind GLP-1 drugs, ADHD, HRV, histamine intolerance, SIBO, and why most probiotics you're taking are probably dead before they even reach your intestines.  Hannah Kleinfeld is the co-founder and COO of Omni-Biotic US, a Yale and Harvard graduate, and a certified health coach whose personal battle with Lyme disease drove her deep into functional medicine and microbiome science. Omni-Biotic is the number one probiotic brand in Europe, used in hospital systems alongside antibiotic treatment, and is now bringing that clinical-grade research to the US market.  Dave and Hannah go deep on the gut-brain axis, the vagus nerve, and how dysbiosis drives everything from brain fog and poor sleep optimization to inflammation, metabolic dysfunction, and compromised mitochondria. They cover how GLP-1 drugs slow gut transit time and trigger secondary dysbiosis, why most capsule probiotics rehydrate in stomach acid and fail, how short-chain fatty acids like butyrate cross the blood-brain barrier to regulate neuroinflammation, and how your gut bacteria directly control your heart rate variability, hormones, libido, and skin. This is biohacking your biology from the inside out, and it goes far deeper than supplements and fasting.  You'll Learn:  Why GLP-1 drugs like Ozempic create secondary dysbiosis and what to do about it  How gut inflammation suppresses HRV, disrupts sleep, and accelerates aging  Why most probiotics rehydrate in stomach acid and never make it to your intestines  The gut-brain connection behind ADHD, brain fog, anxiety, and mood disorders  How dysbiosis sabotages weight loss by skewing Firmicutes to Bacteroidetes ratios  What the vagus nerve has to do with stress resilience and mitochondria health  How to support your microbiome through antibiotics, travel, and SIBO recovery  The histamine problem hiding inside popular probiotic strains  Why the first 1,000 days of a baby's life shape lifelong immunity and HPA axis function  How targeted probiotic formulations are changing functional medicine  Thank you to our sponsors!      Suppgrade Labs | Grab your DAKE and Minerals 101 duo at  shopsuppgradelabs.com  and use code DAVEPOD for 15% off today Pre-order Arthur Brook's new book today at themeaningofyourlife.com . You can also see Arthur speak live at the 2026 Beyond Biohacking Conference  Fatty15 | Go to  https://fatty15.com/dave  and save an extra $15 when you subscribe with code DAVE BrainTap | Go to  http://braintap.com/dave  to get $100 off the BrainTap Power Bundle Dave Asprey  is a four-time New York Times bestselling author, founder of  Bulletproof Coffee , and the  father of biohacking . With over 1,000 interviews and 1 million monthly listeners,  The Human Upgrade  brings you the knowledge to take control of your biology, extend your longevity, and optimize every system in your body and mind. Each episode delivers cutting-edge insights in health, performance, neuroscience, supplements, nutrition, biohacking, emotional intelligence, and conscious living.  New episodes are released every  Tuesday, Thursday, Friday, and Sunday (BONUS) . Dave asks the questions no one else will and gives you real tools to become stronger, smarter, and more resilient.  Keywords:  Hannah Kleinfeld, Omni-Biotic, gut microbiome, probiotics that work, GLP-1 gut damage, Ozempic side effects, secondary dysbiosis, gut brain axis, vagusnerve HRV, SIBO treatment, histamine intolerance probiotics, leaky gut inflammation, butyrate blood brain barrier, ADHD gut connection, probiotic capsules vs powder, antibiotic recovery, gut skin axis, microbiome sleep, Firmicutes Bacteroidetes weight loss, functional medicine gut health  Resources:     • Get 20% off your next purchase of OMNi-BiOTiC with code ‘Dave20’ at:  https://omnibioticlife.com/   • Get My 2026 Clean Nicotine Roadmap | Enroll for free at  https://daveasprey.com/2026-clean-nicotine-roadmap/   • Dave Asprey's Latest News | Go to  https://daveasprey.com/  to join  Inside Track  today.   • Danger Coffee:  https://dangercoffee.com/discount/dave15     • My Daily Supplements:  SuppGrade Labs  (15% Off)    • Favorite Blue Light Blocking Glasses:  TrueDark  (15% Off)    • Dave Asprey’s BEYOND Conference:  https://beyondconference.com     • Dave Asprey’s New Book –  Heavily Meditated :  https://daveasprey.com/heavily-meditated    • Join My Substack (Live Access To Podcast Recordings):  https://substack.daveasprey.com/   • Upgrade Labs:  https://upgradelabs.com       Timestamps:   00:00 - Trailer  01:10 - Intro 03:12 - Kids & Gas: Gut Imbalance in Children  06:42 - Pills vs. Powder Probiotics  07:28 - Omnibiotic Overview & Dave's Story  10:44 - Probiotics & Heart Rate Variability 14:14 - GLP-1 Drugs & the Microbiome  17:24 - Gut & Sleep Quality  19:13 - Probiotics & SIBO  27:47 - Gut Bacteria & ADHD  29:55 - Gut, Libido & Fertility  36:04 - Gut & Unusual Microbiome Facts  43:22 - Histamine Intolerance & Probiotics  51:58 - Kids' Microbiome vs. Adults'  56:10 - Outro  See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .

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Episode summary

I want to dig into how GLP1 drugs hit the gut, and I’m extra curious because my own microbiome’s been a saga—years of antibiotics, wild experiments, even a sketchy stimulator pill from Russia I do not recommend. Let’s cut through the probiotic noise with Hannah from Omnibiotic, a giant in Europe that treats probiotics like targeted tools.

GLP1s slow gut transit, so waste lingers, ferments, and can trigger secondary dysbiosis, inflammation, and a leakier barrier. That can blunt blood sugar control, fat metabolism, and mitochondrial function, so it’s smart to support the microbiome during treatment and as you taper.

Quick household question with a smile: if a pre-teen’s gas clears the room, where do we start?

Look at diet and intolerances, stress and hormones, and consider a stool test to rule out pathogens. If it’s ongoing, a high‑quality probiotic can help reset balance.

Charcoal can calm an emergency blast, but the bigger fix is rebuilding flora. For kids who hate pills, powders are easy—why do powders often beat capsules?

Freeze‑dried strains in capsules rehydrate in stomach acid and can get weakened. Our powder rehydrates in water with prebiotics first, so strains are fed and more resilient through the stomach.

Omnibiotic was new to me, but the data and the delivery convinced me. After surgery antibiotics, your AB10 got me back to normal within days, and many European hospitals use it to cut antibiotic‑related diarrhea and keep bad actors like C. diff in check.

Yes, AB10’s been studied alongside surgeries and antibiotics with strong outcomes. It’s also a great travel ally when something you ate feels off.

Biohackers track HRV—can probiotics move it?

In a recent study, our Stress Release blend improved morning vagal tone in four weeks in people with major depression, and they fell asleep faster with fewer sleep aids. Stress reshapes the gut and constantly signals the brain via the vagus nerve, so fixing the gut can lift HRV.

Most oral drugs interact with gut microbes; if the barrier’s leaky or the flora’s off, meds can misfire.

Right—gut inflammation and a compromised barrier change what enters the blood and how it’s handled.

I’ve heard probiotics can worsen SIBO—true?

If bacteria are overgrowing in the small intestine, some probiotics can add fuel. Practitioners often calm SIBO with antimicrobials first, then rebuild the large‑intestine ecosystem.

Back‑door delivery misses much of the colon’s surface, so I’d go oral. Natural antimicrobials like oregano oil and grapefruit seed helped me, especially while traveling.

There are solid combo botanicals too. And yes, unless SIBO is severe, we support taking probiotics alongside antimicrobials, then continuing at least as long afterward to repair.

Even dead good bugs still signal, so I always pair probiotics with antibiotics—AB10 lives in my carry‑on.

How do you design targeted blends like AB10?

Three decades of research on strain functions plus keystone strains that anchor healthy ecosystems. We match strain combos to desired outcomes and validate in studies.

The prebiotics in your powder matter too; they feed both the incoming strains and resident allies. What about ADHD and the gut?

ADHD is multifactorial, but dysbiosis can worsen symptoms through inflammation and reduced short‑chain fatty acids like butyrate, which regulate neuroinflammation and even gene expression. We also see gut links to women’s hormones and fertility; oxidative stress hits sperm and eggs.

Nitric oxide biology ties gut bugs to arousal and performance through blood flow. You also share microbes at home, so H. pylori or Candida can circulate—does one person’s probiotic fix everyone?

You do share microbes, but there’s no probiotic by osmosis. Best case, everyone in the house supports their own gut.

The mouth kicks off digestion. Does swishing a live powder help the oral microbiome?

Yes—gargle before swallowing at bedtime to let good bugs work overnight. Practitioners even make a paste for perioral dermatitis, and in Europe there’s a probiotic lozenge for ear‑nose‑throat support.

Wildest microbiome insight?

On a genetic level we’re more microbial than human, and those tiny partners steer a surprising amount of physiology and behavior.

I see mitochondria and microbes shaping consciousness in real time—my meditation and patience soar when my gut’s calm.

Same—if a meal is off, I feel brain fog fast, which is a classic gut‑brain flare.

Skin tells the story too. Any quick path to calmer skin?

It’s not instant. Protect your skin microbiome, eat good fats and zinc, and repair the gut‑liver axis. Our Balance blend modulates immune tone for the gut‑skin link, and Detox supports clearance when congestion is the driver.

About weight: that Bacteroidetes‑to‑Firmicutes ratio matters.

When it skews, your body holds fat despite effort. Rebalancing diet and microbes helps flip the switch.

Histamine‑sensitive listeners worry that some probiotics make things worse.

Our strains don’t produce histamine, and powders let sensitive folks start with tiny doses and build slowly.

Joke aside, don’t snort probiotics. For sinus issues, I use a sterile iodine‑salt rinse and avoid tap water; I’d rather support immunity through the gut than push bugs deep into the sinuses.

A few people try adding powder to a neti pot, but it’s close to the brain—be cautious. Rinse, then swallow your probiotic.

Asthma tracks with immune imbalance, and mold exposure made mine worse.

The gut trains immunity, and in kids an imbalanced TH1/TH2 response can march from eczema to food allergies to asthma. Mold can supercharge that overreaction.

Moldy foods and grains can push microbes into a defensive biofilm mode, which stalls healing. For nuts, I favor macadamias and walnuts; sprouted brands like Rich Nuts feel cleaner and are lower in oxalates.

The first thousand days shape a child’s microbiome and stress wiring for life, influencing HPA‑axis resilience.

Vaginal seeding and infant strains during early nursing help set the right flora. We did that at home births to stack the deck for our kids.

Our Omnibiotic Panda is for babies, and moms taking it in the third trimester can nudge TH1/TH2 balance before birth. It’s been shown to reduce colic and eczema; if not using a bottle, you can apply the powder on the nipple.

Public service note to expectant moms with health challenges: getting that early immune balance right can spare your child years of issues. Thanks for the masterclass, and if you want to try it, omnibioticlife.com with code Dave20 saves you twenty percent.

Thanks for having me. Always a joy to dive into the gut together.

The Human Upgrade is for information only and isn’t medical advice. Talk to your healthcare provider before using any products, read labels, and seek care if you suspect a medical issue. Guests speak for themselves, and there may be paid endorsements or financial interests.

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