Zach Bitter

Human Performance Outliers Podcast with Zach Bitter

Sports EN ↓ 508 episodes

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.

Author

Zach Bitter

Category

Sports

Latest episode

Jul 5, 2026

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Episodes

Episode 274: Obstacle Course Training, Zone 2, & Carbohydrate Timing 02.02.2022

This listener driven question/topic episode dives into the differences between training for a 50km ultramarathon and a 50km obstacle course race, defining zone 2 training, and titrating back in carbohydrates during training and racing.  BiOptimizers Biome Breakthrough: biombreakthrough.com/human Promo Code: HUMAN10 Ultimate Direction: ultimatedirection.com Show Sponsors: zachbitter.com/hposponsors...

Episode 273: Lean Mass Hyper Responder Paper With Nick Norwitz & Dave Feldman 28.01.2022

Nick Norwitz and Dave Feldman join to share information on the phenotype known as "Lean Mass Hyper Responder" (LMHR). They share the latest paper , which is the start of a conversation and future studies to look into this particular population.  Episode Sponsor: Athletic Greens - athleticgreens.com/HPO HPO Sponsors: zachbitter.com/hposponsors Support HPO: zachbitter.com/hpo Zach's Training Plans:...

Episode 272: Alcohol & Performance, Electrolyte Protocol, & Mental Training 21.01.2022

This listener driven question/topic episode dives into alcohol and performance, Zach's electrolyte/hydration protocol, mental training tips, and working with individuals with differing approaches.  BiOptimizers: biomebreakthrough.com/human promo: HUMAN10 HPO Sponsor Details & Discounts: zachbitter.com/hposponsors Support: patreon.com/HPOpodcast or zachbitter.com/hpo Zach's Training Plans: zachbitt...

Episode 271: Knees Over Toes - Building From The Ground Up With David Mariani 14.01.2022

David is a strength and conditioning coach with Athletic Truth Group (ATG), where he works with Ben Patrick (Knees Over Toes Guy). He believes in building a strong foundation from the ground up, through strengthening the areas that traditionally get injured through sport by carefully examining the positions that sport puts on our bodies. He currently trains NBA/NFL/MLB players and folks of all age...

Episode 270: Staying Active As We Age - Dr. Kevin Stone 31.12.2021

Kevin R. Stone, MD, is an orthopedic surgeon at The Stone Clinic and Chairman of the Stone Research Foundation. Trained at Harvard University in both internal medicine and orthopedic surgery and at Stanford University in general surgery, he is a world-renowned expert in biologic joint replacement. Dr. Stone has served the US Ski Team, the US Pro Ski Tour, the Marin Ballet, the Smuin Ballet, the Mo...

Episode 269: Movement & Breathing With Aaron Alexander 23.12.2021

Aaron is an alignment and movement coach. He has worked with top level athletes and celebrities, including Toby Maguire and Gerard Butler. He hosts the top ranked podcast, Align Podcast . He has authored the book, The Align Method . Stay tuned for his next book in January! InsideTracker: insidetracker.com promo code: HPOPRO25 BiOptimizers: bioptimizers.com/human promo: HUMAN10 HPO Sponsor Discount...

Episode 268: Running Mechanics, Low Carb, & Training Approach With Dr. Mark Cucuzzella 10.12.2021

Mark wears many hats. Including: Air Force Reserve lieutenant colonel, family medicine, professor at the West Virginia University School of Medicine and conducts Healthy Running Medical Education courses. Mark has been a runner for over four decades and owns the first minimalist running and walking store, Two Rivers Treads. He is the author of, "Run for Your Life." HPO Sponsor Discounts, Promos, &...

Episode 267: Cross Training, Most Beneficial Foods, & Staying On Track 01.12.2021

Zach discusses his current training, shares cross training protocol, his favorite most beneficial foods, and strategies for staying on track with nutrition and training. All listeners are challenged with a Mark Bell inspired workout.  LMNT: drinkLMNT.com/HPO Zach's Training Plans: zachbitter.com/training-plans HPO Sponsor Discounts, Promos, & Links: zachbitter.com/hposponsors   Support HPO: patreo...

Episode 266: Mark Bell - Powerlifting World Record, Bodybuilding, & Ultramarathon 24.11.2021

Mark Bell is well known in the fitness industry. He has world class powerlifting performances, created a multimillion dollar business, successfully competed in bodybuilding, and most recently decided to tackle a 50 miler! Support: zachbitter.com/hpo     Episode Details: zachbitter.com/hpo-episode-266   HPO Sponsors: zachbitter.com/hposponsors    Optimal Carnivore: amazon.com/optimalcarnivore  prom...

Episode 265: Tunnel Hill 100 Mile Recap 19.11.2021

Zach dives into how things went at the Tunnel Hill 100 Mile. His goals going into the event, fueling strategy, how things played out, and what is next! Episode Sponsors: BiOptimizers - Details & Discounts: zachbitter.com/hposponsors & biOptimizers.com/human - promo code: HUMAN10 Zach's Training Plans: zachbitter.com/training-plans Support HPO: patreon.com/HPOpodcast or zachbitter.com/hpo   Zach: z...

Episode 264: Sample Day Of Training & Nutrition, TH 100 Mile, Tracking Food, & More! 12.11.2021

Zach updates his current training, and announces his next race, The Tunnel Hill 100. He shares his thoughts about the course, goals, etc... Listener questions include: warm ups and cool downs, and how to track nutrition. A new workout challenge! Finally, a sample day of Zach's workouts and nutrition. Episode Sponsors: LMNT & BiOptimizers - Details & Discounts: zachbitter.com/hposponsors Support HP...

Episode 263: Metabolic Flexibility, Ketosis, Hilly Training & More! 25.10.2021

Zach updates his current training, discusses listener questions about: metabolic flexibility, keto, training for hilly course, shoe stack height, and aging athletes. Also included, a workout challenge for listeners and a sample day of training and nutrition! Episode Sponsors: LMNT & BiOptimizers - Details & Discounts:  zachbitter.com/hposponsors Support HPO:  patreon.com/HPOpodcast  or  zachbitter...

Episode 262: Fueling Performance With Low Carb & Keto - Matt Carpenter, PhD 15.10.2021

Matt is a Sport Science PhD researcher, studying the impact of ketogenic diets and exogenous ketones on exercise performance. Episode Sponsors: LMNT & BiOptimizers - Details & Discounts: zachbitter.com/hposponsors Support HPO: patreon.com/HPOpodcast or zachbitter.com/hpo Zach: zachbitter.com IG: @zachbitter Tw: @zbitter FB: @zach.bitter Strava: Zach Bitter Matt: contact: m.carpenter@kingston.ac.uk...

Episode 261: Workout Challenge, Low Carb Intensity, Training & Nutrition Sample Day, & More! 30.09.2021

Zach dives into his recovery and training the past couple of months, answers listener questions, challenges you with a workout, and highlights a day of workouts and nutrition! Listener Questions: Assessing fitness before training, short distance race preparation, two races in one week, blocking workouts, and low carb nutrition during moderate/high intensity phase of training. Matt Carpenter Keto S...

Episode 260: Cycling 500 km Per Week On A Ketogenic Diet - Sean Sakinofsky 22.09.2021

Sean is an endurance cyclist who has followed a strict ketogenic diet for 9 years. He routinely cycles 500 kilometers per week, often on as little as 3-4 sessions. He does these rides mostly unfueled in order to explore the possibilities of the ketogenic diet for his lifestyle. Support HPO: patreon.com/HPOpodcast or zachbitter.com/hpo   HPO Sponsor Discounts, Promos, & Links: zachbitter.com/hpospo...

Episode 259: World Record Row Across The Ocean - Jason Caldwell 17.09.2021

Jason and his three-man team recently rowed from San Francisco to Hawaii in 30 days, 7 hours and 30 minutes. The team rowed 24-hours a day in two-man, two-hour shifts to smash the previous record by 9 days. The record marked the 11th world record Jason has set, including the fastest Atlantic Ocean row and fastest unaided trek across the Namib Desert, among others. HPO Sponsor Discounts, Promos, &...

Episode 258: Injury Prevention & Rehab - Brodie Sharpe 10.09.2021

Brodie has a bachelor of Health Science and Masters of Physiotherapy. He is the Founder of, The Run Smarter Series, and hosts the, Run Smarter Podcast. HPO Sponsor Discounts, Promos, & Links: zachbitter.com/hposponsors   LMNT: drinkLMNT.com/HPO InsideTracker: insidetracker.com promo code: HPOPRO25 Zach: zachbitter.com IG: @zachbitter Tw: @zbitter FB: @zach.bitter Brodie: runsmarter.online IG: @run...

Dietitian's Dilemma: Low Carbohydrate Performance - Mike McKnight 06.09.2021

Mike is an ultramarathon athlete best known for winning many of the 200+ mile trail races that have grown in popularity. He holds the record for the, "Triple Crown of 200s." Show Sponsor: SFuels - sfuelsgolonger.com ​ - promo code: ZACHB5 Zach's Training Plans: zachbitter.com/training-plans Support the show: patreon.com/HPOpodcast or https://zachbitter.com/hpo Zach: Web: zachbitter.com - IG: @zach...

Episode 257: The 6,000 Challenge - Alex Wisch 30.08.2021

Alex is an avid fitness enthusiast, with an extensive background in a variety of sports including MMA, Wrestling, Ultramarathon, Sailing, and Crossfit. He recently took on a challenge of seeing how long it would take to complete 1000 pull ups, 2000 push ups, 3000 squats all while wearing a 20lb weighted vest. Support HPO: patreon.com/HPOpodcast or https://zachbitter.com/hpo   Sponsor Website: http...

Episode 256: Reclaiming Health & Fitness - Chris Cornell 25.08.2021

Chris took control of his life by dropping 80lbs, finding his rhythm with strength and endurance training, and beating cancer. Chris lays out his strategy and why consistency and individual sustainability have been keys to his success. Support: patreon.com/HPOpodcast or https://zachbitter.com/hpo   InsideTracker: insidetracker.com promo code: HPOPRO25 BiOptimizers – bioptimizers.com/human promo: H...

Episode 255: Low Carb, Keto, Fasting With Brady Holmer 18.08.2021

Brady is pursuing his PhD in Applied Physiology at the University of Florida. His current research focus is on the impact of exercise and lifestyle factors on cardiovascular health and function.  Episode Sponsor: Egg Weights – eggweights.com promo: Zach15 Zach's Training Plans: zachbitter.com/training-plans Support: patreon.com/HPOpodcast or ko-fi.com/zbhpo Show updates & links: zachbitter.com IG:...

Episode 254: Ryan Dreyer - Animal vs Plant Foods 11.08.2021

Ryan is a goal setter and self experimenter. He recently tested and documented a carnivore way of eating, as well as a plant based way of eating. He took notes and got labs along the way. Episode Sponsor: Egg Weights – eggweights.com promo: Zach15 Zach's Training Plans: https://zachbitter.com/training-plans Support: patreon.com/HPOpodcast or ko-fi.com/zbhpo Show updates & links: zachbitter.com IG:...

Episode 253: Ultramarathon Man - Dean Karnazes 30.07.2021

Dean has been a big spokesperson and participant in the ultramarathon community. He shares his experiences over the years with Zach and Nicole. Episode Sponsor: BiOptimizers –  bioptimizers.com/human  promo: HUMAN10 Zach's Training Plans: zachbitter.com/training-plans Support: patreon.com/HPOpodcast or ko-fi.com/zbhpo Show updates & links: zachbitter.com IG: @zachbitter Tw: @zbitter FB: @zach.bitt...

Dietitian's Dilemma: Eating Disorders & Nutrition - Shebani Sethi, MD 26.07.2021

Dr. Shebani Sethi is a Stanford and Duke trained double board-certified physician in Obesity Medicine and Psychiatry. She is the Founding Director of Stanford University's Metabolic Psychiatry program and Silicon Valley Metabolic Psychiatry, a new center in the San Francisco Bay Area focused on optimizing brain health by integrating low carb nutrition, comprehensive psychiatric care, and treatment...

Episode 252: Boston Marathon Race Director, Philanthropist, & Endurance Athlete - Dave McGillivray 14.07.2021

Dave is the RD of one of the biggest races in the World, the Boston Marathon. He is a philanthropist with numerous endurance feats to his name; including single and multi-day ultramarathons. Episode Sponsor: Egg Weights – eggweights.com promo: Zach15 Zach's Training Plans: zachbitter.com/training-plans Support: patreon.com/HPOpodcast or ko-fi.com/zbhpo Show updates & links: zachbitter.com IG: @zac...

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