Iron Culture presented by MASS25 Juni 2025

Ep 333 - Are High-Protein Diets Really Harmless?

In this episode of Iron Culture, Dr. Eric Helms talks about his forthcoming article in the MASS Research Review covering the purported harms of high-protein diets. This isn’t your typical oversimplified dunk-fest that readily dismisses concerns about high-protein diets. Instead, Helms reviews a thorough paper that reviews common concerns in detail and assessed their plausibility in an objective manner. The claims include:

Claim 1 – protein reduces lifespan

Claim 2 – protein makes bones weaker

Claim 3 – protein harms kidneys

Claim 4 – protein causes diabetes

After that, Dr. Eric Trexler discusses a recent Instagram thread that pulled him into arguments against his will. The post was about his recent article on ketogenic diets and seed oils – two topics that are always bound to attract some controversy and heated debate. This conversation discusses the strengths and limitations of different types of scientific research and also touches on bias, objectivity, and the process of seeking the truth with an open mind.

Time stamps:

0:00 Intro

3:00 Helms’ new article about the purported harms of high-protein diets

19:25 Claim 1 – protein reduces lifespan

27:48 Claim 2 – protein makes bones weaker

43:38 Claim 3 – protein harms kidneys

50:53 Claim 4 – protein causes diabetes

57:22 Trex’s social media beefs – keto and seed oils

1:03:40 Types of observational studies

1:08:35 Seeking truth versus defending biases

1:17:32 Limitations versus fatal flaws

1:24:19 Limitations of RCTs (randomized controlled trials)

1:32:23 Wrapping up

Det här avsnittet är hämtat från ett öppet RSS-flöde och publiceras inte av Podme. Det kan innehålla reklam.

Avsnitt(155)

Ep 387 - Energy Cost of Building Muscle

In this episode, Eric Trexler and Eric Helms explore the energetic cost of building human skeletal muscle, discussing recent research, practical implications, and misconceptions about muscle growth an...

26 Aug 1h 2min

Ep 386 - Sleep, Hypertrophy, and Creatine

Trexler and Helms dig into sleep and how it intersects with body composition and supplementation. They open on the sleep-and-lifting landscape, then work through the frequently cited 2010 study on ins...

20 Aug 1h 19min

Ep 385 - Do Studies on Untrained Lifters Apply to Trained Lifters?

Trexler and Helms dig into Helms's new MASS article, "Are studies on untrained lifters irrelevant to trained lifters?" It's built around a new umbrella review by Andy Fry and colleagues. The recurring...

12 Aug 1h 18min

BONUS: Bulking Is Dead - Eric Helms & Steve Hall

In this episode, Eric Helms and Steve Hall explore the nuances of body recomposition, optimal bulking and cutting strategies, and the science behind muscle gain and fat loss. They discuss recent resea...

5 Aug 1h 15min

Ep 384 - Is Ultrasound Lying About Your Gains?

A methods-focused episode about how muscle and body-composition measurements can mislead you when reading the research. The main event is a new Balshaw and colleagues paper concluding that ultrasound ...

29 Juli 1h 22min

Ep 383 - Q&A: Imbalances, Fatigue, & REDs

In today's Q&A episode, the Erics work through a few listener questions. First they tackle upper/lower body imbalance — why lagging body parts usually call for improving training quality before adding...

22 Juli 1h 5min

Ep 382 - The Science of Building Bone (ft. Dr.Lora Giangregorio)

The Erics sit down with bone health expert Dr. Lora Giangregorio, a professor of kinesiology at the University of Waterloo, to unpack what's actually known about how bone adapts to resistance training...

15 Juli 1h 26min

BONUS: Are Fitness Trackers Worth It? - Eric Helms & Steve Hall

In this episode, Steve Hall and Eric Helms explore the nuances of training, recovery, and the use of technology in bodybuilding. They share insights on managing recovery, the limitations of fitness tr...

8 Juli 1h 14min