
Hosted by MASS Research Review · EN

In this Q&A episode, Eric Trexler and Eric Helms open with a recap of their trip to Norway and announce a new MASS partnership with AFPT International. They then work through a string of listener questions that end up forming a surprisingly cohesive arc: how much total daily energy expenditure actually varies between people, RED-S and low energy availability, what really drives satiety, and a deep dive into building or retaining muscle in a calorie deficit. The back half tackles body recomposition head-on, why the rigid "bulk vs. cut" mindset comes largely from competitive and enhanced bodybuilding, and how natural powerlifters demonstrate that recomp is closer to the default state than most people assume.Iron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners.massresearchreview.comIf you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.comIf you'd like to submit a question for a future episode, head over to:massresearchreview.com/ironcultureChapters0:00 - Intro10:24 - Q&A begins: Is maintaining 2400 cal "above the mean"? (TDEE variance)17:00 - RED-S, low energy availability & the female athlete triad23:10 - What actually drives satiety?33:14 - Building muscle in a deficit: protein needs & why muscle is lost49:31 - What bulking studies tell us about surplus size55:40 - Listener case study: bulk first or recomp while cutting? (Natalia)1:01:15 - Where the "bulk vs. cut" mindset really comes from1:12:24 - Powerlifting as a case study in recomposition1:16:44 - Do drugs break the rules? PEDs & nutrient partitioning1:18:34 - Wrap-up

In a monumental moment for the Iron Cult, OMAR RETURNS for a guest appearance.In this episode, Omar Isuf and Eric Helms discuss the journey of creating the ambitious Iron Culture documentary, highlighting behind-the-scenes challenges, personal sacrifices, and the passion driving their project. They reflect on the collaborative effort, funding, and the cultural significance of their work, offering insights into the process of producing a self-funded, passion-driven documentary. In this episode, Omar Isuf and Eric Helms reflect on the impactful moments of their recent documentary, the evolution of the fitness community, and the importance of intentionality and community in the space. They share behind-the-scenes stories, insights on social media's influence, and the enduring value of authentic connection.If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.comIron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners.massresearchreview.comChapters00:00 Introduction01:48 Documentary Journey and Collaboration13:50 Reflections on the Process30:35 Documentary Creation and Community Support42:44 Reflections on Personal Growth and Legacy57:28 Support throughout the process01:07:12 The Evolution of Fitness Content and Its Challenges01:14:06 Navigating the Fitness Landscape Today01:25:34 Closing Thoughts

Eric Helms and Steve Hall discuss training strategies, deloads, body image, and the cultural aspects of bodybuilding, sharing insights from their experiences and recent projects like the bodybuilding documentary.Chapters00:00 Introduction and Banter03:00 Connecting with Omar and Rascal05:58 The Essence of Bodybuilding and Community08:49 The Documentary Journey12:06 Philosophical Reflections on Sports14:48 The Impact of the Documentary18:06 Personal Stories and Connections21:02 Final Thoughts and Future Projects30:09 The Journey of Giving Back33:23 Reflections on Life and Legacy36:12 Future Competitive Aspirations41:41 The Evolving Perspective on Progress54:59 Navigating Fatigue and Deloading Strategies01:07:44 The Importance of Auto-Regulation

Eric Trexler and Eric Helms recently found themselves in the middle of a debate about optimal protein intakes, all initiated by a social media post from Stu Phillips (a leading researcher in the area). In this episode, they dive into how that scientific discourse played out, the nuances of protein intake, and the implications for recreational lifters and bodybuilders alike. They discuss the complexities of scientific data interpretation, public messaging, and practical recommendations for optimal protein consumption.If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.comIron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners.massresearchreview.comChapters00:00 Intro06:13 Social Media Debate on Upper Limits of Protein Intake13:07 Analysis of Stu Phillips' Post and Scientific Discourse24:06 Review of Tagawa Meta-Regression Studies34:58 Nunes Data and Recent Research Insights39:06 The Refalo et al paper53:49 Balancing Nuance and Public Messaging01:03:00 Concluding Thoughts on Science Communication

Back in episode 375, Helms and Trex briefly mentioned a few “evidence-based fitness” topics for which their views have evolved over the years. In hindsight, they didn’t give a few of those topics the time, attention, and explanation they deserve. So in this episode, Helms and Trex take a closer look at two key topics: maximum recoverable (or adaptable) training volume, and various approaches to strategically manipulating leptin levels (such as refeeds and diet breaks). If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.com Iron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners. massresearchreview.com Chapters00:00 Intro04:11 The origins of MRV/MAV07:08 Updated perspectives on MRV/MAV14:26 Practically applying MRV/MAV17:11 Helms’ current volume adjustments24:30 Updating models in science29:20 The importance of leptin32:42 The origins of Trex’s interest in manipulating leptin38:47 Running studies on diet breaks and refeeds44:27 Recent meta-analysis on intermittent dieting strategies50:19 Trex’s current perspective on refeeds and diet breaks 53:47 Behavioral versus physiological effects59:09 Contextual use of intermittent dieting1:06:34 Wrapping up

Join us for a rare Iron Culture episode with co-hosts who are not only on the same continent, but actually in the same ROOM. Helms and Trexler are in Australia for the Sports Nutrition Association Annual Conference, so they got together to record an episode about Trex's presentation topic: resistance to weight loss. Specifically, why being a true "outlier" who is resistant to weight loss efforts is quite rare, particularly when looking at the energy expenditure side of the equation.If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.comIron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners.massresearchreview.comChapters00:00 Introduction07:09 Tracking errors and energy absorption22:21 Myths and realities related to medical conditions50:48 Metabolic adaptation & exercise energy compensation56:36 Weight loss friction as a spectrum

Join Drs Eric Helms and Eric Trexler as they discuss the importance of humility in science, and a few key areas where their perspectives have changed over the years.If you're in the market for some new (ultra-high-quality) gym gear or apparel, be sure to use code "MRR10" for a 10% discount over at elitefts.comIron Culture is proudly presented by the MASS Research Review. Mostly because Helms and Trex are co-owners.massresearchreview.comChapters00:00 Intro13:11 The Iron Culture Documentary Release18:03 Criticism and Public Perception28:20 Intellectual Humility and Changing Perspectives38:33 Evolving Views on Nutrition and Training

Join Steve Hall and Eric Helms as they explore the nuances of bodybuilding, nutrition, and training strategies. From caffeine timing and body composition tracking to posing techniques and mental models, this conversation offers practical insights for athletes and enthusiasts aiming to optimize their performance and physique.Iron Culture is presented by the MASS Research Reviewmassresearchreview.comIf you're in the market for some new gym gear or apparel, be sure to use code "MRR10" for a 10% discount at elitefts.comChapters00:00 Morning Rituals: Caffeine Choices and Preferences02:43 Caffeine Cycling: Strategies for Bodybuilding Performance05:19 Caffeine and Sleep: Finding the Right Balance08:27 Diet Sodas: The Hidden Caffeine Dilemma10:52 Navigating Post-Show Eating: The Recovery Phase13:53 Protein Intake: Debating the Optimal Amount16:45 Training vs. Nutrition: Prioritizing Muscle Gain19:26 Understanding Protein Recommendations: Context Matters22:17 The Importance of Training Intensity25:06 Blue Light Blockers: Effects on Sleep Quality35:20 Blue Light Blockers and Sleep Quality37:11 Body Weight and Recovery Insights39:11 Stage Weight and Body Composition Changes41:34 Tracking Progress: Measurements and Photos45:10 The Importance of Posing in Bodybuilding50:39 Online Coaching and Posing Techniques

This episode begins with a slightly defensive rant by Eric Trexler, followed by a very defensive rant by Eric Helms. After that, they dive into new research uncovering the complexities of ultraprocessed foods, their impact on obesity, binge eating, and the food industry’s role in creating and promoting hyperpalatable ultraprocessed foods.Iron Culture is proudly presented by the MASS Research Review (massresearchreview.com)If you're in the market for some high-quality gym gear or apparel, be sure to support our friends at elitefts.com and use code "MRR10" for a 10% discount.Chapters00:00 Intro10:14 Trexler & Helms respond to social media criticism15:48 Slightly defensive rant by Trexler23:10 Extremely defensive rant by Helms32:25 Roles in The Ecosystem of Science Communication41:39 Exploring the Impact of Ultra-Processed Foods46:20 Understanding Ultra-Processed Foods and Their Nuances51:16 The Role of Food Processing in Feeding a Growing Population55:53 Hyper-Palatable Foods and Their Effects on Eating Behavior59:07 The Evolution of Eating Disorder Treatment Perspectives01:04:30 The Relationship Between Hyper-Palatable Foods and Binge Eating01:09:05 Neurophysiology of Food Consumption and Addiction01:12:20 Conclusions & practical applications for food selection

This episode begins with a discussion about the importance of scientific rigor in fitness research and science communication. After that, hosts Eric Trexler and Eric Helms discuss the relationship between skeletal structure and muscle growth, including whether or not your bone structure can predict how much muscle you gain in response to training or your maximum level of muscularity.Iron Culture is proudly presented by the MASS Research Review (massresearchreview.com)If you're in the market for some high-quality gym gear or apparel, be sure to support our friends at elitefts.com and use code "MRR10" for a 10% discount.Chapters00:00 Intro11:19 Expert Creep and Science Communication21:22 Responsibly Expanding Your Domain of Expertise31:42 Exploring Bone Structure and Muscle Growth32:51 Study Overview: Bone Characteristics and Hypertrophy41:13 Interpreting the results of a new study47:50 Methodological nuances58:30 Hypertrophy versus total muscularity01:02:48 Finding the right sport for your frame and bone structure01:12:23 Practical applications