Welcome back to another After Dark episode here on the Iron Sights Podcast. Tonight, I’m hanging out with Erik Grohmann, a former U.S. Marine infantryman who found his passion for fitness and nutrition while serving and then went on to earn a master’s in nutrition and dietetics. These days Erik is the nutrition coach over at Modern Athlete Strength Systems, where he works with law enforcement, firefighters, EMS, military members—and really anyone who wants to perform at a higher level.

We get into the fundamentals of human performance: the common nutrition mistakes people keep making, what actually works versus the trendy quick fixes, and the practical steps you can take to start seeing results right now. Eric also talks about how his Marine Corps background shaped his no-nonsense approach and why he launched Grunt Grubb to help clients cut through the noise.

If you’re tired of diet confusion and ready for straight talk that actually delivers, you’ll want to stick around for this one.

Timestamps:

00:00 Intro

05:59 Marines to Nutrition

11:25 Dietetics Career

15:14 Launching Modern Athlete

19:15 Coaching Hurdles

36:28 Common Issues

51:38 Fitness Goals

53:48 Calories & Macros

56:42 Fiber & Micros

58:43 Long-Term Habits

01:04:41 Carbs & Performance

01:25:32 Field Tips

01:38:23 Meal Planning

01:43:00 Personalized Coaching

02:03:45 Modern Athlete Services

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