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: zachbitter.com/coaching

Zach’s Newsletter: substack.com/@zachbitter

A recent study 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

LMNT: drinkLMNT.com/HPO

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: zachbitter.com/coaching

Zach’s Newsletter: substack.com/@zachbitter

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

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

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

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

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

LMNT: drinkLMNT.com/HPO

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: zachbitter.com/coaching

Zach’s Newsletter: substack.com/@zachbitter

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

Sam: IG: @dr.samspinelli - X: @DrSamSpinelli

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

Zach’s Low Carb Endurance Approach Series

LMNT: drinkLMNT.com/HPO

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: zachbitter.com/coaching

Zach’s Newsletter: substack.com/@zachbitter

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

Davy: ultrarunninghistory.com - IG: instagram.com/ultracrockett X: @UltraRunningHis - facebook.com/groups/ultrarunninghistory -facebook.com/crockettdr

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.

Endurance Training Simplified Series

Zach’s Low Carb Endurance Approach Series

SFuels: sfuelsgolonger.com code: BITTER5 (FREE SAMPLE PACK LIMITED OFFER)

Janji: janji.com code: Bitter10

LMNT: drinkLMNT.com/HPO

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: zachbitter.com/coaching

Zach’s Newsletter: substack.com/@zachbitter

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

Scott: readyforultra.com/feed - extratomorrows.com - Coaching - @thescottsy

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.

Endurance Training Simplified Series

Zach’s Low Carb Endurance Approach Series

SFuels: sfuelsgolonger.com code: BITTER5 (FREE SAMPLE PACK LIMITED OFFER)

Janji: janji.com code: Bitter10

LMNT: drinkLMNT.com/HPO

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 Newsletter: substack.com/@zachbitter

Find Jess: generatorathletelab.com - IG: @generatorathletelab

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter

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

Endurance Training Simplified Series

Zach’s Low Carb Endurance Approach Series

SFuels: sfuelsgolonger.com code: BITTER5 (FREE SAMPLE PACK LIMITED OFFER)

Janji: janji.com code: Bitter10

LMNT: drinkLMNT.com/HPO

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: zachbitter.com/coaching

Zach’s Newsletter: substack.com/@zachbitter

Find Zach: zachbitter.com - IG: @zachbitter - X/Tw: @zbitter - FB: @zbitterendurance - Strava: Zach Bitter