
Iron Culture presented by MASS
Iron Culture was started as a means of exploring the world of physical culture and attempting to distill a unified philosophy of lifting and to help listeners find greater meaning from the iron. It focuses on dispensing practical, useful information to the listener, bouncing from history, to philosophy, to contemporary lifting culture issues, to science.
Iron Culture is proudly presented by the MASS Research Review.
Latest episodes

Apr 14, 2024 • 1h
MASS Office Hours Episode 31 (Preloads for Satiety + Q&A)
Dr. Eric Trexler and Dr. Eric Helms talk about using expandable gel capsules before meals to reduce energy intake and promote weight loss. They discuss protein intake for bodybuilders during cutting phases, addressing individual needs. The Q&A segment covers topics like building neck musculature, baseball elbow injuries, and pursuing health-related graduate degrees with an unrelated background.

Apr 7, 2024 • 1h 33min
MASS Office Hours Episode 30 (Pros and Cons of Refeeds + Q&A)
In this podcast, Dr. Trexler and Dr. Helms discuss the psychology of refeeds in bodybuilding, emphasizing intuitive eating skills, emotional coping strategies, and individualized approaches. They address listener questions on refeeds for staying lean year-round, fat loss sprints, measuring cortisol, and supplement certifications. The episode concludes with a comparison of competitive bodybuilding, recreational bodybuilding, and general fat loss goals, highlighting key differences but stating anyone can claim the bodybuilder title.

8 snips
Mar 29, 2024 • 1h 30min
MASS Office Hours Episode 29 (Optimal Rest Intervals + Q&A)
The podcast discusses optimal rest intervals for acute performance and long-term outcomes, factors impacting rest interval length, practical recommendations for rest intervals, adjusting protein intake based on energy expenditure, estimating maintenance calories, accessory lifts for powerlifting, increasing aerobic fitness to improve hypertrophy potential, optimal set volume per session, optimal set volume per week, and avoiding the interference effect from concurrent training.

Mar 23, 2024 • 1h 36min
MASS Office Hours Episode 28 (Step Count Goals + Q&A)
Topics include step count goals, leucine threshold theory, dietary fat needs, supplements for vegan lifters, intra-workout carb supplementation, beta-alanine, resistance training and heart health, training to failure while cutting, preserving muscle, late-night eating, calorie timing, training while sore, and more!

Mar 16, 2024 • 1h 39min
MASS Office Hours Episode 27 (Stretch-Mediated Hypertrophy + Q&A)
Topics covered include stretch-mediated hypertrophy, natural limits for strength and muscularity, dealing with setbacks in the gym, the role of mindfulness in fitness, optimal lengths for bulking and cutting phases, improving sleep quality, Ramadan fasting, back training, and more.

Mar 9, 2024 • 1h 34min
MASS Office Hours Episode 26 (Progressive Overload Strategies + Q&A)
Progressive overload strategies, zone 2 cardio, rest days importance, velocity work, stretch-induced hypertrophy, specialization blocks, eccentric vs concentric training, creatine impact on sleep, importance of carbohydrates, and more discussed by Dr. Eric Trexler and Dr. Mike Zourdos in a Q&A session.

Feb 28, 2024 • 45min
MASS Office Hours Episode 25 (Can you stay shredded?)
Exploring the challenges of staying shredded year-round, discussing the physiological consequences and misconceptions in the fitness industry. Analyzing energy availability and weight regulation, highlighting the complexities of maintaining a lean physique. Addressing the impact of low-calorie diets on metabolic adaptations and body weight regulation. Emphasizing the importance of stress testing constructed narratives in the fitness field.

4 snips
Feb 24, 2024 • 1h 32min
MASS Office Hours Episode 24 (Processed Foods, Plant Protein, Training Volume)
Discussion on ultra-processed foods, plant-based diets, food swaps, antioxidants, optimal training volume for muscle growth, training adjustments for older lifters, capillary density's relationship with hypertrophy, electrolyte supplementation, and the effects of antioxidants from fruits and vegetables on gains.

Feb 17, 2024 • 1h 39min
MASS Office Hours Episode 23 (Myo-Reps, Cluster Sets, CNS Fatigue)
Experts discuss advanced training methods like myo-reps and cluster sets, addressing CNS fatigue, protein distribution, and muscle growth. They explore effective workout strategies, underrated exercises, and considerations for strength training with a history of anorexia nervosa. The podcast covers topics ranging from rest pause training to biological “set points” for fat and muscle mass.

Feb 11, 2024 • 1h 30min
MASS Office Hours Episode 22 (Menopause, Caffeine, “Skinny Fat” Solutions)
Topics discussed include training for peri- and post-menopausal women, pros and cons of caffeine, low energy availability and its impact on the endocrine system, managing side effects of creatine, sex differences in fatigue and training volume, being "skinny fat," cluster sets versus straight sets for hypertrophy, favorite exercise machines, and training through or around minor injuries.