Is an Energy Deficit Really That Bad? - Associate Professor Jose Areta

Update: 2025-11-28

Description

After recapping some of Xylon’s life choices, we discuss some outrageous Lebron James stats before a quick cricket discussion. We then move on to some discussion of refereeing and following this discuss a paper on the evolution of endurance performance and coaching. Finally Dr Jose Areta joins us to discuss a paper of his.

Jose Areta is an Associate Professor in Exercise metabolism and nutrition at Liverpool John Moores University currently specializing on the endocrine, metabolic and physiological effects of low energy availability and how these may affect performance. Jose kindly joined us to discuss his recent publication: “Endocrine, Metabolic, and Skeletal Muscle Proteomic Responses During Energy Deficit With Concomitant Aerobic Exercise in Humans”

(00:00 ) Introduction

(00:17 ) Medical Question

(02:37 ) Xylon’s Bad Life Choices

(05:47 ) David’s Update

(08:49 ) Community Shoutouts

(13:14 ) Lebron James Longevity

(15:17 ) The Ashes

(18:07 ) Referees in Rugby

(25:12 ) Evolution of Endurance Coaching and Performance

(30:27 ) Interview Preview

(31:33 ) Interview Starts

(33:10 ) Context for the Paper

(35:48 ) Idea Behind the Paper

(37:53 ) What was Done in the Paper

(41:08 ) What Does a Study Like This Cost?

(42:07 ) How Long did the Study Take?

(44:07 ) How Much Would Including Women Have Cost?

(46:02 ) What Did the Authors Find?

(50:41 ) What was the Fat Free Mass Loss Comprised of?

(56:01 ) Muscles and Mitochondria vs Collagen

(1:00:27 ) Would a Similar Pattern be Expected with a More Moderate but Longer Term Energy Deficit?

(1:02:43 ) What is the Next Step in the Research?

(1:07:29 ) Energy Deficit and Performance

(1:09:32 ) Would Results be Different with Different Exercise Modalities?

(1:14:17 ) Review

(1:18:52 ) Doctor’s Office - Hannah Williams

(1:22:05 ) What We’re Watching

Thanks to Precision Fuel and Hydration for their sponsorship, use the link below to get 15% off your first order and support the podcast:

https://visit.pfandh.com/theonepercentbetterpodcast

If you’re unsure how which products to use or how to plan your race nutrition check out Precision’s Fuel & Hydration Planner (if you follow this you will have your discount applied automatically on your first order too):

https://visit.pfandh.com/onepercentfuelplanner

Thanks also to Stryd for their sponsorship, check out Stryd:

Stryd helps you optimize your training and racing by measuring your running power, providing real-time data to improve efficiency, pace, and performance on any terrain. Plus, it integrates seamlessly with your favorite running watch for real time guidance! Go to https://stryd.live/opb to export Stryd’s cutting-edge technology and how it can empower your run.

Thank you to Core for the sponsorship.

Core is a Core body temperature sensor that helps and guides you along your heat training path.

Check out their new Core 2 Sensor here: https://corebodytemp.com/collections/products/products/core2?utm_source=onepercentbetter&utm_medium=referral&utm_campaign=Q4

Paper on Endurance Coaches on the Evolution of Athlete Training and Performance

https://pubmed.ncbi.nlm.nih.gov/41248624/

Links to Jose

Research Gate: https://www.researchgate.net/profile/Jose-Areta

X: https://x.com/jlAreta

Jose’s Paper We Discussed

https://pmc.ncbi.nlm.nih.gov/articles/PMC12582342/

Submit topics, feedback or questions to us on Instagram via DM or to the email address: podcast.1percentbetter@gmail.com

Follow us on Instagram: