Ep 334 - Microplastics: Setting the Record Straight

Iron Culture

The MASS Crew

Sports & Recreation, Health & Fitness

4.8 • 827 Ratings

🗓️ 2 July 2025

⏱️ 90 minutes

🔗️ Recording | iTunes | RSS

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Summary

In this episode of Iron Culture, the Erics provide some updates, corrections, and clarifications related to their recent episode exploring the science of microplastics. After that they take a brief moment to celebrate the 100th issue of the MASS Research Review, then answer listener questions on topics including: tasty meat alternatives, programming supersets, scaling dietary variables for very small/short individuals, the pros & cons of "extended release" caffeine formulations, the utility & shortcomings of BMI as a health metric, and more.

MASS is celebrating its 100th issue, but it's never to late to join in on the fun! Learn more at massresearchreview.com

Also, don't miss Iron Culture's sister podcast, ⁨@fpfpodcast⁩ hosted by MASS's very own Eric Trexler and Dr. Lauren Colenso-Semple

Time stamps (coming soon):
0:00 Intro
0:58 Revisiting microplastics (updates, corrections, and clarifications)
25:08 MASS celebrates 100th issue
34:00 Well-wishes for bodybuilding legend Ronnie Coleman
41:37 Tasty meat alternatives
47:12 Programming supersets
49:23 Scaling dietary variables for very small/short individuals
57:10 The utility & shortcomings of BMI as a health metric
1:05:03 Individual response variation to training
1:16:12 The pros & cons of "extended release" caffeine formulations

Transcript

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0:00.0	Hello, everybody. Welcome back to Iron Culture, presented by the mass research review. It's Monday night. It's 7 p.m. We're doing a live episode. I am here with the one-only Dr. Helms. How are you doing today? I'm actually doing great tracks because we got some really cool feedback that caught me off guard.
0:25.7	I had to text you actually engaging with you outside of the confines of the podcast, which I only, there's kind of a rule.
0:33.3	Yeah, you're against.
0:34.7	It doesn't go well, but I thought even you would appreciate this, even if it came from me.
0:38.9	And I was, I wasn't said, I was surprised, but I was, I was pleased to see that we could at least have that level of cordialness between us.
0:48.6	But it's pretty cool.
0:49.3	I'm looking forward to sharing it with all the, uh, the listeners.
0:52.4	Yeah.
0:52.8	I mean, do you want to go for it?
0:54.4	Do you want to take it out?
0:55.6	Yeah.
0:55.9	Okay.
0:56.3	So for a little context, I, I, you know, we both have university jobs in addition to our
1:02.9	science communication work.
1:04.0	So I do come into AUT specifically up at AUT Millennium where we have the Sprins Labs regularly and to meet
1:13.0	with my students, you know, help with research projects, go to meetings, do stuff like that.
1:18.2	And we have an internal mail system. So our research coordinator, the awesome, Jane, she was like,
1:26.0	hey, Eric, did you see you got a package? I was like, oh, no, I did not. And I'm anticipating this is something like something internal
1:33.4	related to research or from a student or from a graduate student. Plastic cryotubes coming in,
1:39.4	that kind of deal. Not nearly as cool as the stuff you do, but, but something, right? And no, it was actually from one of the other faculties. So just for kind of a cross language for people in like the U.S., we have the university, then we have faculties, and we have schools underneath those,
2:00.9	and departments underneath those. So I sit within the Faculty of Health, Environmental
2:04.9	Sciences, in the School of Sport and Recreation, and this was sent from someone in art and design.
	...

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