Human Performance Outliers Podcast with Zach Bitter

Jason Fitzgerald is a life long runner, and host of The Strength Running Podcast. In this episode, we discuss if Truett Hanes can reach the Olympic Trials Marathon Qualifying time of 2:16, the increase in strength athletes embracing running, the role of strength in running, and the rise in popularity of muscular endurance and fatigue resistance training strategies.

Find Jason: strengthrunning.com | IG: @jasonfitz1 | X: @JasonFitz1

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...

I ended the year with a race where I didn't meet expectations. These types of experiences offer opportunities about what should be kept, versus what will likely lead to the same mistakes. For this episode, I highlight how I assess a training cycle to tease out the positives and the learning opportunities. 

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)

CurraNZ: ww...

In this episode, I reflect on my build into this year's Desert Solstice Track Invitational where I plan to target a fast 100 miler and 12 Hour ultramarathon. Included, my history with this event, how things went leading into it, how I structured my training, and my strategy around nutrition, hydration, pacing, and cooling for the event. 

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) Duration: 00:42:28

In this episode, Jeff Mogavero joins the podcast to discuss his exciting year in trail and ultra running, including his impressive second-place finish at Javelina (2024), notable performances at Canyons and Western States, and a nail-biting win at Ultra Trail Cape Town. Jeff dives into the specifics behind these successes, highlighting the impact of fine tuning his hydration strategy. The conversation also explores Jeff's unique approach to cooling during hot races, his thoughts on nutrition and fueling, and his plans to tackle races like Western States and UTMB in the future.

Endurance Training Simplified Series

ProBio...

For this episode, I dive into some of the fundamental elements to structuring a running program in a sustainable way. This guide is helpful for beginners and runners looking to best organize their current training.

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/c...

Anne Flower burst onto the ultramarathon scene this year by breaking the long standing Leadville 100 Mile Course Record of 31 years at her debut 100 mile race. She turned things around quickly for a very different experience by breaking the 50 Mile World Record at the Tunnel Hill 100/50 three months later. Anne trains and races while maintaining a career as an ER Doctor. 

Anne: Mountains to Mountains - IG: @_flowpow_

Endurance Training Simplified Series

ProBio: probionutrition.com/endurance Code: Endurance (20% Off)

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

deltaG: deltagketones.c...

Caitriona Jennings, an Irish long-distance and ultra-distance runner has had a distinguished career spanning marathons, ultras, and international competition. She represented Ireland at the 2012 London Olympics and has set multiple national and world records, particularly in ultra distances. She recently broke the Women's 100 Mile World Record at Tunnel Hill 100 Mile, where she finished in a time of 12:37:04 in her debut at the distance.

Caitriona: caitrionajennings.com - IG: @jenningscaitriona

Endurance Training Simplified Series

ProBio: probionutrition.com/endurance Code: Endurance (20% Off)

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

...

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...

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...

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 We...

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...

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 | I...

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 H...

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...

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<...

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<...

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...

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...

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

...

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...

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

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...

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...

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

C...

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...

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)<...

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

deltaG: deltagketones.com Code: BITTER20 (20% Off)

Maui Nui Venison: mauinuivenison...

This episode covers some current topics in the ultramarathon world. Topics covered include; big name injuries a result of high volume training and shoes, has ultramarathon growth and access resulted in cheating, Gerda Steyn the Queen of Comrades.

Edit: Gerda Steyn has won Comrades 4x: '19, '23, '24, '25

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: Bitter20...

James Pieratt of Wild Hunt Conditioning joined me to catch up before he kicks off his 1,100 mile journey along the West Coast and discuss the famous Rarámuri Tribe's endurance practices and lifestyle.

Audio

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/h...

Dan Green recently won the Cocodona 250 and broke the course record along the way with a time of 58:47:18. Prior, Dan has found success running fast times at the Javelina 100, including breaking 13 hours last year and landing on the podium.

Dan Green: IG @danisgreen - YouTube: @BargainBoysMedia

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)

Megan Eckert is a World Record holding ultramarathon athlete for Mount to Coast, teacher, and coach. She recently broke the women's 6-Day World Record, by completing 603 miles. She holds the women's Backyard Ultra record with 87 laps for 362 miles, qualified for Team USA's 24-Hour World Championship Team, and much more.

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)<...

Alyssa Clark has covered a wide range of events in the ultramarathon world. She has wins at Moab 240, HURT 100 Mile, San Diego 100 Mile, Ouray 100 Mile, and Canyons 100 Mile to name a few. Alyssa also battles ulcerative colitis, presenting an additional hurdle when fueling daily and during races that entail a large nutrition variable.

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...

Charlie competed in D1 Cross Country and Track & Field for the University of Minnesota. He currently holds the World Record for the 50 Mile, 4:48:21 (5:46/mi). He recently won the USATF 50 KM Road Championships in a time of 2:49:01.

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...

Sam Harvey is one of the best Backyard Ultra runners in the World. He was part of the legendary push that resulted in three men breaking the World Record at the Big's Backyard Ultra Championships in 2023. He has a wide range, which he recently showcased by winning the Tarawera 100 mile this year.

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...

James Pieratt of Wild Hunt Conditioning is preparing for a 1000 mile point to point journey along the West Coast, hitting some historic sites along the way. We unpack some of the specifics in preparation and event execution.

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.c...

Adventurer, speaker, author and USMC Vet. Just completed a 60 day solo, unsupported journey covering 500 miles across Antarctica.

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

Maui Nui Venison: mauinuivenison.com/bitter

CurraNZ: curranzusa.com

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo 

Amazon Store: amazon.com/shop/zachbitter

Zach's Coaching: zachbitter.com/coaching

Zach's Newsletter: substack.com/@zachbitter

For this episode, I share some thoughts on the topic of "fit but unhealthy." Recently, pro triathlete Lionel Sanders shared some details about his health concerns. This came as a surprise to some as he is visually very healthy and performed at a very high level. Some have hypothesized it is due to his hyper carb fueling strategy. Others have suggested endurance training to the degree taken by professional athletes is unhealthy.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

...

Trishul and Bob are the President and Record Keeper for the Global Organization of Multi-day Ultrarunners (GOMU). GOMU was established to supplement the existing government bodies that only recognize records of certain ultramarathon events. Both Trishul and Bob have rich histories in ultramarathon, with 100s of official events to their names. We dive into their experiences as well as the growing needs when it comes to rules and record keeping that are specific to the needs of ultrarunning. A few topics we focused on include: pacing in ultramarathon, course certification, shoe tech, and certifying record performances.

Endurance...

For this training recap, I unpack a four week block of training where my main focus was a continuation of speed work development with a bit more variety of inputs this time around. Hybrid workouts, fast finishes, and hills all included. I highlight the thought process behind the programming, execution, and add some tips to consider in training as I build up for a 100 mile track ultra in June!

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

deltaG: deltagketones.com...

Matt Johnson got into running in 2020 after discovering a love for the sport following a difficult youth, and a career in the National Guard. Since, he has built a successful Instagram channel that blends competitiveness and humor. He took his love of running across the State of Texas, an 841 mile journey in 17 days, raising awareness for ValorFit.

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

Maui Nui Venison: mauinuivenison.com

Support...

For this episode, Brady and I dive into a group of running shoes that we have been putting through the paces the last couple of months, as well as touched on some models that we have worn historically. We also share some thoughts around running shoe considerations in general. Shoes covered include: Mizuno Neo Zen and Wave Rebellion Pro 3, Puma Deviate Nitro Elite 3, Mount to Coast R1 S1 and P1, Xero HFS II, Nike Zoom Fly 6, and Altra Vanish Carbon II.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

LMNT: drinkLMNT...

How should you go about managing and preventing blisters, and what workout is going to be best for you. This listener Q&A dives into these two topics.

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

Maui Nui Venison: mauinuivenison.com

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo 

Amazon Store: amazon.com/shop/zachbitter

Zach's Coaching: zachbitter.com/coaching

Zach's N...

For this training recap, I unpack a four week block of training where my main focus was short intervals and long runs. I highlight the thought process behind the programming, execution, and add some tips to consider in training.

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

Maui Nui Venison: mauinuivenison.com

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo 

Amazon Store: amazon.com/shop/z...

Ryan Dreyer founded Tribal Training, a group based endurance training coaching service where members leverage a community approach to reach their goals. Ryan has completed both Ironman and ultramarathon distance events and coached many others reach their goals.

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

Maui Nui Venison: mauinuivenison.com

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo 

Amazon Store: amazon.com/shop/zachbitter Duration: 01:13:33

Steve Magness is a world-renowned expert on performance. He is the author of the new book, Win the Inside Game, and has also authored, Do Hard Things: Why We Get Resilience Wrong and The Surprising Science of Real Toughness. He is the coauthor of Peak Performance. The Passion Paradox, and the author of The Science of Running. For this episode we dive into the topics covered in his latest book.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

deltaG: deltagketones.co...

Dustin Joubert is a running researcher, PhD in Exercise Physiology and professor at St. Edwards University. He has a popular IG and website that deep dives into super shoe technology. He also runs a lab in Austin, Texas where he tests both running and shoe efficiency.

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

Maui Nui Venison: mauinuivenison.com

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo  Duration: 01:42:21

This is part one of a series this year where I reflect on my training blocks for 2025. This episode covers the first three weeks after switching from an offseason/strength focus towards running taking the primary position.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo 

Amazon Store: amazon.com/shop/zachbitter

Zach's Coaching: z...

A study on Low Carb Keto diets was recently published by Prins, Noakes, Koutnik, et al. that examined the role of stable blood sugar through very small carbohydrate intake as the main determiner of performance for endurance athletes, as well as some insights into low carbohydrate performance compared to high carbohydrate. I take a look, and share some thoughts.

Study
Brady's Substack

Brady's IG: @brady.j.holmer & Brady's post on topic

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

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deltaG: d...

This episode continues a series covering some of the most prolific ancient endurance groups and tribes the world has ever seen. Joining me as co-host for this series is James Pieratt. We unpack what made the Apache some of the most impressive endurance athletes of all time. For more on James, check out episode 395 where we discuss his lifestyle.

James: wildhuntconditioning.com - IG: @wildhuntconditioning

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

LMNT: drinkLMNT.com/HPO

deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

Dr. Samuel Spinelli is a Doctor of Physical Therapy and Certified Strength and Conditioning Specialist (CSCS). He is the cofounder of Rehab Explained and Citizen Athletics. He has helped many professional athletes rehab and prepare for peak performance. He joined the show to share his insights on hamstring performance and health.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

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deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

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Davy Crockett is an ultramarathon runner, and hosts Ultrarunning History. His podcast and books dive deeper than any other ultramarathon history resource. Davy also is the director of the American Ultrarunning Hall of Fame.

Endurance Training Simplified Series

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deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

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J Scott Chapman is a certified ultrarunning coach who really enjoys big mountain races. Given that two of his core values are curiosity and exploration, he loves to read the latest studies, but he knows that ultras are not run in a lab. His coaching philosophy embraces the idea that while there are established training principles, no single approach fits everyone. He considers each individual's unique life circumstances to create the best plan, understanding the need for tradeoffs to ensure the training aligns with their lifestyle and goals.

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Dr. Jess Tranchina is a PT, DPT, NASM-CPT, A.R.T Certified Provider, CKTP. She has been an athlete most of her life. Training and competing in runs from the 5K to 50ks, triathlons from the sprint distance to Ironman distance, strength competitions, and figure competitions has provided her with opportunities to train from the best, learn from the best, be treated by the best, and compete with the best.  Competing, racing, and trial and error have taught her the importance of proper conditioning, nutrition, hydration, prehab, pliability and recovery.

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Brady Holmer is a MSc in Human Performance, endurance athlete, and science writer. He hosts Physiologically Speaking, a great resources for both health and endurance performance. Brady recently dropped 10 minutes off his marathon PR on a four day per week running program, clocking a speedy time of 2:26:28. We unpack how he structured his training and nutrition. We also touch on some new research around carb timing, and some considerations for creatine usage for performance and sleep related fatigue resistance.

Brady: https://www.physiologicallyspeaking.com/ - X: @B_Holmer - IG: @brady.j.holmer - Strava

End...

Dr. Courtney Conley is the creator of Gait Happens, an online education company helping people from around the globe improve their foot function. She has taken the past several years to develop online courses to educate clinicians on foot anatomy, the importance of foot health and the truths behind modern footwear.

Courtney: gaithappens.com - IG: @gaithappens

Endurance Training Simplified Series

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Tara Dower recently broke the record for fastest traverse of the full Appalachian Trail (AT) outright. No man or women has covered the distance faster. The AT is 2,197.4 miles over unforgiving terrain. Tara covered it in 40 days 18 hours 05 minutes, which is the equivalent of approximately two marathons per day. Tara also holds the Women's supported FKT on the Colorado Trail (489 miles). Tara is also a highly competitive ultra runner with wins at Run Rabbit Run 100, Umstead 100, Hellbender 100 to name a few. Check out Tara's social, website and YouTube channel below.

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This episode kicks off a series of episodes covering some of the most prolific ancient endurance groups and tribes the world has ever seen. Joining me as co-host for this series is James Pieratt. For more on James, check out episode 395 where we discuss his incredible lifestyle.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

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...

For this episode, I dive into some things that I find important when considering doing an ultramarathon. These planning processes will help you better prepare and execute in your training and the event. Topics include: timeline, available resources, gear list, nutrition list, hydration list, measurement tools, and mental preparation.

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Joe and I dive into topics including:

Tightening of women's competition

Tara Dower beats everyone on the AT

Have we learned anything about pacing

Is Katie Schide the final WSER/UTMB same year Champ

Multiday and time event growth

Camille/Wiki thoughts

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Adam is a 12-year combat veteran of the Air Force with deployments to Iraq and Afghanistan as an Explosive Ordnance Disposal (EOD) team leader. In 2007, while working to disarm a roadside bomb (IED) in Afghanistan, Adam was injured by a secondary IED resulting in the amputation of his right leg above the knee.

Adam is now a seven-time Guinness World Record holder, became the first above-knee amputee to complete a 100-mile ultramarathon within 30 hours in 2016, has five 100-mile finishes, and set an amputee record time of 16:13:43 for 100 miles in 2024. Adam also has the fastest marathon time for...

Mikki Williden is a nutrition PhD who dives into topics of low carb nutrition, longevity, fitness, and health. Some topics we covered include:

Keto v. low carb

Athletes using low carb

Is keto safe for women

Fasting: timing, men v. women, heavy exercise

Periodized nutrition

Endurance Training Simplified Series

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David Hellard is an ultra marathon runner, running journalist, and host of The Bad Boy Running Podcast. In this episode we discussed the excitement around short fast trail races, media and opportunities in the sport of trail running, and caffeine protocols for athletes.

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

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David Spiegel is an American psychiatrist and the Wilson Professor and Associate Chair of Psychiatry at Stanford University School of Medicine, where he is known for his research into psycho-oncology; the neurobiology of therapeutic hypnosis, and the role of the mind-brain-body connection in cancer outcomes and management among other topics. He directs the Stanford Center on Stress and Health and is a recognized authority on hypnosis's clinical utility and neuroscience.

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Janji...

David is the 2014 USATF Trail Runner of the Year at the sub-ultra distance. He is a two-time national champion and three-time member of Team USA. He graduated with honors from Columbia University with a degree in Environmental Science and received a master's degree and law degree with honors from Duke University. He is the co-owner of SWAP Running with Megan Roche, and also co-host with Megan for the SWAP podcast.

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Janji...

Dr. Dave will be challenging himself to complete the Javelina 100 mile in 2024, going from the couch to the 100 mile distance in a years time. Dave has an extensive background as a medical director, treating thousands of patients, including: Olympians, National Champions, sports teams, and professionals. After losing his own health in the pursuit of helping others find theirs, Dave and his family embarked on a wild journey that included living in a bus, working on organic farms, traveling the country before ultimately landing them in Austin, Texas.

Endurance Training Simplified Series

Zach's Low Carb Endurance...

Dr. Andreas Eenfeldt is the founder/CEO of both Diet Doctor and HAVA. Diet Doctor focuses on providing information related to low carbohydrate ketogenic diets, and HAVA leverages an approach that focuses on key components of satiety to help users decide what food choices may best serve them.

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Zach's Low Carb Endurance Approach Series

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Mike is a 2002 graduate of The U.S. Military Academy at West Point where he was commissioned as an officer and went on to serve three combat tours with the First Cavalry Division and 3rd Special Forces Group.  Mike continues to serve the nation as a Lt. Colonel in the U.S. Army Reserves, assigned to the United States Military Academy at West Point, where he is an Assistant Professor. He is the co-author of LEAD YOURSELF FIRST by Bloomsbury Press (2017).  Mike and his wife Genevieve live on a 32-acre farm in North Carolina, where they raise their five young...

Thirteen years ago, Justin went to the Congo in hopes of providing clean water for the Pygmy Tribe. The journey began with six failed wells, led to multiple bouts with malaria, and life threatening hikes in search of water. Justin's life story is full of examples of overcoming what many would consider insurmountable hurdles, which is why he has gotten to where he is today. Justin and his team at Fight For the Forgotten (FFTF) will soon break ground on a new hospital to go along with the wells, farms, trees, sanitation and training they have provided. Justin believes...

Joe and I unpack what we thought about this year's Western States Endurance Run, including reported fueling strategies, heat mitigation, competitive pressure, and shoe tech. We also touched on some other performances, including Jenny Hoffman's 24 Hour at Six Days in the Dome, and Megan Eckert hitting 526.301 miles in six days, new ultra gender gap study.

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Support...

Philip Calder is Head of the School of Human Development and Health and Professor of Nutritional Immunology in the Faculty of Medicine, University of Southampton. He is an internationally recognized researcher on the metabolism and functionality of fatty acids, with an emphasis on the roles of omega-3 fatty acids, and on the influence of diet and nutrients on the immune and inflammatory responses.

Topics Prof Philip Calder and I touched on for our seed oil discussion:

Jae Gruenke from The Balanced Runner believes good running form means using your body the way it really works rather than fighting to move it some other way. For this episode we unpack a few topics related to pain free running. They include: Pros/Cons of Feldenkrais Method, how shoe type can impact running form, the role of forward lean, arm "swing", foot strike, and cadence for proper running.

Endurance Training Simplified Series

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Janji: janji...

For this episode I break down my recent 100 mile at the Pettit Center, where I completed the distance in 11 hours 51 minutes (7:07/mi). Some topics include:

Training: workout focus progression, training races, speed work focus

Event strengths and weaknesses

Event day nutrition 

Setting up crew

Caffeine use

Race mentality

Post race recovery

Post race nutrition

Endurance Training Simplified Series

Zach's Low Carb Endurance Approach Series

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Janji: j...

For this episode, I outline in detail how I currently program my strength training routine.

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Janji: janji.com code: Bitter10

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Support HPO: zachbitter.com/hpo 

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Zach's Newsletter: substack.com/@zachbitter

This is the first of a new type of episode I will be releasing with Joe Corcione as co-host. We will be covering topics and trends in the ultramarathon space.

For this episode, we hit heavy on the Cocodona 250, discussed the new women's 48 Hour World Record, the trend of going longer yet with ultra, and the Spring Energy Gel controversy.

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This year I went to the Cocodona 250 to follow a few of my coaching clients along the 250 mile, 125 mile courses. As the sport of ultramarathon continues to grow, these type of experiences are beneficial as both a coach and an athlete. This episode highlights what I learned about some differences these longer ultras present.

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...

James Pieratt is the man behind Wild Hunt Conditioning. He hit rock bottom with a heroin addiction that landed him in prison. From there, he took control of his life and since has accomplished some amazing feats, including; running 500 miles, deadlifting 550 lbs, becoming proficient in Jiu Jitsu. James also has a passion for backcountry hunting and comes from a long line of bear hunters, and has a passionate interest in tribal endurance. James uses all of his skills to better his ability to navigate the backcountry.

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For this episode, I unpack the specific movements I focus on for my mobility routine, and how I embed different aspects of mobility into my daily life.

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Janji: janji.com code: Bitter10

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deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

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Support HPO: zachbitter.com/hpo 

Zach's Coaching: zachbitter.com/coaching

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Zach: zachbitter.com IG: @zachbitter X/T...

This is part four of a four part series where I detail how I train and eat throughout my training cycles for ultramarathon. This episode highlights the ultra marathon long run phase.

Endurance Training Simplified Series

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Support HPO: zachbitter.com/hpo 

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Zach's Newsletter: s...

This is part three of a four part series where I detail how I train and eat throughout my training cycles for ultramarathon. This episode highlights the speed work development phase.

Endurance Training Simplified Series

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Janji: janji.com code: Bitter10

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deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

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Support HPO: zachbitter.com/hpo 

Zach's Coaching: zachbitter.com/coaching

Zach's Newsletter: substack.c...

This is part two of a four part series where I detail how I train and eat throughout my training cycles for ultramarathon. This episode highlights the base building phase.

Endurance Training Simplified Series

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Janji: janji.com code: Bitter10

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deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20

HPO Website: zachbitter.com/hposponsors

Support HPO: zachbitter.com/hpo 

Zach's Coaching: zachbitter.com/coaching

Zach's Newsletter: substack.com/@zachbitter

This is part one of a four part series where I detail how I train and eat throughout my training cycles for ultramarathon. This episode highlights the offseason.

Endurance Training Simplified Series

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Janji: janji.com code: Bitter10

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Zach and Nicole share some advice around what to consider when doing training races during your primary race training.

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Support HPO: zachbitter.com/hpo 

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Nicole: IG: @nkbitter

Zach: zachbitter.com IG: @zachbitter X/Tw: @zbitter Substack: zachbitter.substack.com FB: @zbitterendurance Strava: Za...

Vinny Crispino founded Pain Academy after breaking his back while surfing. As a former D1 Swimmer, he didn't want to accept defeat and began a journey to fix his issues. Vinny shares his journey and how he has helped people who don't move like they used to and struggle with chronic pain, nagging injuries, or other movement issues. We also dive into the mental aspect of running an ultramarathon.

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This episode is part of a series where Nicole will be interviewing a guest. The topic of this series is centered around individuals excelling in sport while maintaining a highly demanding career. 

Sabrina Little is a Philosophy PhD and assistant professor, mother, and has participated on five national teams ranging from 100km to 24 hours. Sabrina recently published a book titled, "The Examined Run."

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Dr. Dave will be challenging himself to complete the Javelina 100 mile in 2024, going from the couch to the 100 mile distance in a years time. Dave has an extensive background as a medical director, treating thousands of patients, including: Olympians, National Champions, sports teams, and professionals. After losing his own health in the pursuit of helping others find theirs, Dave and his family embarked on a wild journey that included living in a bus, working on organic farms, traveling the country before ultimately landing them in Austin, Texas.

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Janji: j...

Rory Linkletter is a Canadian Marathon Athlete sponsored by Puma. He recently clocked a 2:08:01 marathon, which falls 9 seconds under the standard required to participate in the 2024 Paris Olympics. Per the Canadian selections process, it is unlikely his time of 2:08 will not grant him a spot on their team. In this episode, we discussed his path to 2:08, his training under the guidance of American distance great Ryan Hall, his and others decision to go straight to the marathon after college, training insight, fueling and hydration targets, why some athletes favor certain super shoes, and much more!

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Hayden Hawks is a professional ultramarathon athlete. His results are numerous, but include finishing second at the Western States Endurance Run 100 Mile, winning UTMB-CCC, Speed Goat 50km, and the Black Canyon 100km in course record time. 

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Support HPO: zachbitter.com/hpo 

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Hayden: hawksrunning.co...

Brady is a MSc in Human Performance, endurance athlete, and science writer. He publishes Physiologically Speaking on substack, and works with Examine on reviewing research in effort to help users better understand supplement and intervention evidence. 

Topics covered: keto/low carb endurance, periodized carbohydrate training, supplement efficacy and his work at Examine, recent half marathon personal best, exogenous ketones, strength training for endurance athletes. 

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This episode is the start of a series where Nicole will be interviewing a guest. The topic of this series is centered around individuals participating in sport while maintaining a highly demanding career. 

Allison is a four time Olympic Trials Marathon Qualifier and co-owner of Rogue Expeditions. At Rogue Expeditions, Allison creates run-centric vacations around the world. Itineraries are designed to combine authentic, off-the-beaten-track travel experiences with organized, supported daily runs in unforgettable places, and to accommodate all levels.

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Brendan is an Associate Professor of Sport and Exercise Physiology, and currently Head of School for the School of Health and Human Performance at DCU. His current research investigates skeletal muscle function and adaptation across the life course, with special interest in the synergy between nutrition and exercise interventions ranging from athletes to older adults.

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Dr. Mike T. Nelson has a PhD in Exercise Physiology, a BA in Natural Science, and an MS in Biomechanics. He's an adjunct professor and a member of the American College of Sports Medicine with an interest in metabolic flexibility.

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Find Mike: miketnelson.com...

Jonathan Levitt hosts, "For The Long Run" podcast. Jonathan's career has given him insights into the athlete, creator, and company side of engaging with runners. In this episode we dive deep into how all three of these groups engage with the running community, as well as the future of running content and engagement. 

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...

Brian is one of the original three founders of Altra Footwear. Along with Jeremy Howlett and Golden Harper, he launched the business from his garage. In this episode we discuss what it is like starting a brand and navigating the different growth stages along the way. 

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Akshay Nanavati is a United States Marine veteran, speaker, entrepreneur, ultra runner and author. He served in Iraq during Operation Iraqi Freedom and was later diagnosed with post traumatic stress disorder. He is currently training for a never before accomplished, solo, 2700km, 110 day expedition in Antarctica.

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https://bliss.fearvana.com/greatsoulcrossing 

Akshay: fe...

Jeremy Miller is a hybrid athlete, co-owner of Switchback, and host of the Jeremy Miller Podcast. He joined the show to chat about how he began incorporating running into his fitness goals, and what led him to dipping his toe into the ultra world. Jeremy is aiming to parlay his build up and race at the Chicago Marathon into his first flat 100km at the Brazos Bend 100km this December.

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Elov Olsson is a Swedish ultramarathon runner, who has spent his career targeting both flat runnable surfaces, as well as mountain courses. He recently raced the Tunnel Hill 100 Mile, where he broke the course record with a time of 11 hours 26 minutes 19 seconds, placing him amongst the fastest 100 mile performances of all time. 

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Elov: IG: @el...

Dr. Dave will be challenging himself to complete the Javelina 100 mile in 2024, going from the couch to the 100 mile distance in a years time. Dave has an extensive background as a medical director, treating thousands of patients, including: Olympians, National Champions, sports teams, and professionals. After losing his own health in the pursuit of helping others find theirs, Dave and his family embarked on a wild journey that included living in a bus, working on organic farms, traveling the country before ultimately landing them in Austin, Texas. 

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deltaG: deltagketones.com - I...

Nicole joined for this episode as we recap my race at this year's Javlina 100 Mile where I completed the five loop course in 13 hours 34 minutes 08 seconds for fifth overall. 

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deltaG: deltagketones.com - IG: @deltag.ketones

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Support HPO: zachbitter.com/hpo 

Articles mentioned in this episode: The Javelina 100 Mile & Fueling Javelina 100 Mile 

Nicole: @nkbitter

Zach: zachbitter.com IG: @zachbitter Tw: @zbitter Substack: zachbitter.substack.com FB: @zbitterendurance Strava: Zach Bitter TikTok: @zachbitter Threads: @zachbitter

For this episode, I reflect on the training build up leading into the 2023 Javelina 100 Mile.

LMNT: drinkLMNT.com/HPO

deltaG: deltagketones.com - IG: @deltag.ketones

HPO Sponsors: zachbitter.com/hposponsors

Support HPO: zachbitter.com/hpo 

Zach's Coaching: zachbitter.com/coaching

Zach's Newsletter: substack.com/@zachbitter

Zach: zachbitter.com IG: @zachbitter Tw: @zbitter Substack: zachbitter.substack.com FB: @zbitterendurance Strava: Zach Bitter TikTok: @zachbitter Threads: @zachbitter

Dr. Nicholas Norwitz obtained his PhD in ketogenic metabolism and neurodegenerative diseases at Oxford University and is now working towards his MD at Harvard Medical School. Nick follows a ketogenic diet, and has been heavily involved in research and the public conversation around proper application of low carbohydrate/ketogenic ways of eating. 

For this episode, we address the question of how far is too far when it comes to advocating for this way of eating. As low carb and ketogenic diets become more popular, what responsibility do advocates have when speaking to the application of these dietary p...