Human Performance Outliers Podcast with Zach Bitter

Welcome to the Human Performance Outliers Podcast. Your host Zach Bitter, will take you through a series of interesting topics around health, fitness, endurance, running, hybrid athlete training, ultramarathon, and nutrition. Join in for interviews with folks exploring their outer limits and research in a wide variety of sports, fitness, and nutrition.

Episode 463: Fifth 100 Miler Under 12 Hours

For this episode, I unpack my race at the Equalizer Endurance Run 12 Hour, where I split 11 hours 48 minutes 25 seconds for 100 miles. I share what went into the thought process leading in, how I navigated the day, and dive into my high carb fueling strategy. Endurance Training Simplified Series ProBio: probionutrition.com/endurance Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast (free 14-day trial) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

10-31
38:35

Episode 462: Kilian Korth | The Rise of 200 Milers

Kilian Korth recently won the Triple Crown of 200s, which is a three race series, including Tahoe 200, Big Foot 200, and Moab 240. He not only won the series, but all three of these 200+ mile races outright. We dive into many of the topics around the rise of these multi-day ultras. Kilian: IG @runtoughmindset | Substack: https://runtoughmindset.substack.com/about Endurance Training Simplified Series ProBio: probionutrition.com/endurance Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast (free 14-day trial) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

10-27
01:29:26

Episode 461: How Running Fuels Nicholas Thompson's Success as CEO of The Atlantic

Nicholas Thompson is the CEO of the Atlantic and an avid runner. He holds the American 50 KM record (age 45–49): In 2021, Thompson set an American record for his age group in the 50K (31 miles), finishing in 3:04:36. Nicholas Thompson: nicholasthompson.com | IG: @nxthompson | X: @nxthompson Endurance Training Simplified Series ProBio: probionutrition.com/endurance Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast (free 14-day trial) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter   

10-22
01:14:54

Episode 460: Optimizing Energy and Micronutrition | Dr. Marc Bubbs

In this episode of the Human Performance Outliers Podcast, Zach Bitter is joined by performance nutritionist Dr. Marc Bubbs to discuss the intricacies of optimizing energy through nutrition. Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition. They cover various key topics including the importance of magnesium, its intake, absorption, and how lifestyle factors like stress and diet affect it. They also delve into other essential micronutrients like B12, folate, and CoQ10, discussing their roles in energy production, recovery, and athletic performance. The conversation offers practical insights into how diet and selective supplementation can enhance overall health and performance.  Endurance Training Simplified Series ProBio: probionutrition.com Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast (free 14-day trial) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter Dr. Marc Bubbs: drbubbs.com | IG: @drbubbs | X: @drbubbs

10-15
46:33

Episode 459: High Carb & Training Recap

This episode outlines how my high carb experiment has been going after 14-weeks, and as I transitioned into my 100 mile specific peaking phase of training. Endurance Training Simplified Series ProBio: probionutrition.com Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

10-08
29:03

Episode 458: Recovery Optimization | Dr. Marc Bubbs

Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition. In this episode, we dive deep into recovery and what to consider when training. Part one of this series is episode 456 where we cover gut health. Endurance Training Simplified Series ProBio: probionutrition.com Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter   

10-01
51:07

Episode 457: David Roche | King of the Carbs

David Roche is an elite ultramarathon athlete, and coach. He recently rebroke his own course record at the Leadville 100 Mile. David has been a big advocate for not just high carbohydrate consumption, but has challenged the limitations of very high in race carbohydrate consumption and what it can do for performance. David: swaprunning.com | IG: @mountainroche | X: @MountainRoche Endurance Training Simplified Series ProBio: probionutrition.com Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Training Peaks: trainingpeaks.com/hpopodcast Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

09-25
01:05:27

Episode 456: Gut Health | Dr. Marc Bubbs

Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition. Dr. Bubbs previously came on the show for episodes 113 & 275. Dr. Marc Bubbs: drbubbs.com | IG: @drbubbs | X: @drbubbs Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) ProBio: probionutrition.com Code: Endurance (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter   

09-19
01:01:51

Episode 455: Keira D'Amato | Don't Call It A Comeback

Keira D'Amato had a promising future in running in high school and college, before stepping away for 8-years. When she returned to running, professional trajectory was not on her radar. She found new motivations and identity with running being part of her story, which lead to breaking American Records in the Full and Half Marathon. Her book, "Don't Call It A Comeback," is a great example of how success and fulfillment comes in many paths. Keira D'Amato: keiradamato.com | IG: @keiradamato I Strava: Keira D'Amato | Book: Don't Call It A Comeback Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

09-10
51:37

Episode 454: Running Shoe Innovation | Todd Falker

Todd Falker is a life long runner, completing 100 marathons and FKT across Michigan (225mi/362k). He is the Product Lead at Puma. With his time at Puma, Todd has become a key member in growth and innovation, helping bring shoes testing at the peak of performance efficiency to market. Todd: IG: @toddfalker | Linkedin Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

09-05
01:28:29

Episode 453: Cam Hanes | The Growth of Ultra

Cameron Hanes is an American bowhunter, endurance athlete, author and outdoorsman best known for his relentless pursuit of backcountry bowhunting in the remote wildernesses. His success in a variety of communities has resulted in bringing large groups of people into the sport of ultramarathon. For this episode, we talk about what draws him to ultramarathon, different approaches and personalities within the sport, and what makes the sport so interesting. Cam: cameronhanes.com | IG: @cameronhanes | Podcast: Keep Hammering Collective | Books: Backcountry Bowhunting, Undeniable: How To Reach The Top And Stay There, Endure: How to Work Hard, Outlast, and Keep Hammering. Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

09-02
01:48:44

Episode 452: High Carb - My First 8-Weeks

After using a low carbohydrate for 14 years over my ultramarathon racing career, I decided for my next 100 mile training cycle and race, to try high carb. I outline why and how the first 8-weeks have gone. Substack Post: Testing High Carb after 14 years Low Carb Low Carb Series: My Low Carb Approach Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

08-28
40:43

Episode 451: Running Shoes Will Predict Injury | Royi Metser

Royi Metser joined me to share some discuss how we collect data through wearables like watches, foot pods, and heart rate monitors. We dive into the future of how footwear can add to these data points, in an effort to better optimize mechanical loading. Royi: @royimetser & @avelorunning - Kickstarter Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

08-14
01:02:44

Episode 450: Fat Oxidation Levers | Dr. Matthew Cook

Dr. Matthew Cook is a Senior Lecturer in Sport and Exercise Science at the University of Worcester. Dr. Cook has worked with a range of athletes including cyclists and runners. He joined the podcast to discuss the topic of fat oxidation as it pertains to endurance training and racing. Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Dr. Cook: https://www.worcester.ac.uk/about/profiles/dr-matthew-cook Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

08-05
01:34:04

Episode 449: Nick Bare - BPN Moves into Endurance

Nick Bare is the founder of Bare Performance Nutrition (BPN), and has built a large brand around sharing his journey chasing fitness goals. Recently, Nick and BPN launched a Last Man Standing event called, G1M Ultramarathon on his ranch in Texas. It went viral despite little pre event mainstream ultra media coverage, but rather exploded from participants and BPN creating live and pre/post event content around it. We chat about Nick's current build for an Ironman, the future of BPN Ultramarathon and their move into the endurance world. Nick: nickbare.com | IG: @nickbarefitness | Podcast: Nick Bare Podcast | YouTube: @nickbarefitness | Book: Go One More: Find the Clarity to Make Intentional, Life-Changing Choices Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

07-29
01:29:10

Episode 448: Shoe Talk with Brady Holmer

Brady joined me to chat about some shoes we have been trying out the last couple of months. Shoes we covered include; Speedland RX:FPY, Tracksmith Eliot Racer, Puma Fast-R Nitro Elite III, New Balance 1080v14 & Rebel v4, ON Cloudsurfer II, Brooks Hyperion Max III & Launch 11. Shoe card specs for the models we discussed are available on Instagram at @hpopodcast Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter Brady: https://www.physiologicallyspeaking.com/ - X: @B_Holmer - IG: @brady.j.holmer - Strava: Brady Holmer

07-23
01:17:35

Episode 447: Ultramarathon Records at Dead Cow Gully | Phil Gore

Phil Gore recently broke the Backyard Ultra World Record at Dead Cow Gully, completing 119 yards (6.7 km loop), which totaled 495.86 miles (798.014 kilometers). Phil plans to compete at Big's Backyard, which hosts the Backyard Ultra World Championship. Phil and I dive into all that goes into the preparation and competition within Backyard Ultras, and why bigger numbers are coming. Phil: @phil.gore.ultrarunner | Strava Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Journal: substack.com/@zachbitter Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

07-10
01:28:00

Episode 446: WSER 100 - What We Learned

WSER 100 is becoming one of the most recognized and high stakes 100 mile ultramarathons for both professionals and ultramarathon participants. we can learn a lot about how participants are preparing and completing this event. Here are some things to consider from what we learned at the 2025 WSER 100. Heat adaptation and in race management The power of race day expectations The psychology around group and competitive pressure Considerations around varied weather events The role of super shoes on the trails Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Newsletter: substack.com/@zachbitter Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

07-03
37:08

Episode 445: Jeff Garmire | Cocodona, Media, & Doping Control in Ultra

Jeff Garmire is a professional ultramarathon athlete, coach, author, podcast host, and one of a very few to have participated in all Cocodona 250 events. Long ultras are not even long for Jeff, as he has also completed some monster through hikes like John Muir Trail, Arizona Trail, Continental Divide and more. He is currently gearing up for an unsupported attempt on the Appalachian Trail in August. Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Newsletter: substack.com/@zachbitter Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter Jeff: freeoutside.com | IG: @thefreeoutside | YouTube: @JeffGarmire | Podcast: Free Outside Podcast

06-30
01:34:05

Episode 444: WSER 100 | Meghan Canfield: 13 Finishes, 10 top 10

Meghan Canfield has a deep history and love for the WSER 100 Endurance Run, completing it 13 times and finishing in the top 10 on 10 occasions. She has been a long time friend, and big influence on the ultramarathon community. She joined me to discuss why the WSER 100 is unique, her many experiences with this event, as well as growing with the sport. Meghan: zenithcoaches.com/about-us/meghan-canfield - IG: @runningmegleg Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal (20% Off) Support HPO: zachbitter.com/hposponsors HPO Website: zachbitter.com/hpo  Zach's Coaching: zachbitter.com/coaching Zach's Newsletter: substack.com/@zachbitter Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter 

06-24
01:34:27

Matthew Secker

terrible background noise, like someone doing dishes

09-27 Reply

A.J. Olding

the Alzheimer's research is great to hear.

07-16 Reply

savagezen

Awesome team up 👍🏻

07-04 Reply

savagezen

Once again, the big 4 nutritional lies of the last 70 years: red meat, cholesterol, sodium, saturated fat. All claimed "evils", all critical for optimal health.

07-02 Reply

Paul Bass

sorry. I'm afraid they are too long for me. good info, could be condensed

05-13 Reply

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