
Why Protein Hits Different After 40: Amino Acids, Muscle, and Midlife Power with Liz Plosser
The Warrior School PodcastShow Notes
Liz Plosser is the Founder of the Best Case Scenario Substack, a wellness playbook helping people feel a little better today than they did yesterday. She is the former Editor-in-Chief of Women’s Health, where she oversaw the brand for seven years across its print and digital platforms and various brand extensions, reaching a monthly audience of 44+ million.
A veteran of the wellness industry, she has held senior strategy and content roles at Well+Good, SoulCycle, SELF, & Cosmopolitan. She appears regularly as a speaker and is a frequent guest on national television and podcasts. Liz is the author of the book, Own Your Morning: Reset Your A.M to Unlock Your Potential. She graduated cum laude from Princeton University, is a NASM certified trainer and nutrition coach, and lives in Brooklyn with her husband, three children and dog.
What We Talk About:
How Liz went from burning out in finance to running marathons to lifting heavy
The real reason your old nutrition strategy isn’t working anymore
Why most women are under-eating protein—and what that’s doing to your body
What amino acids are (and why they’re your body’s secret weapon after 40)
How to actually get enough protein without losing your mind
Why “toning” is out—and muscle is in
How to use EAAs strategically around training to build and preserve lean mass
Why She loves Kion EEAs
Key Takeaways:
Protein is essential, but not for the reason you think—it's not just for muscle, it's for everything: your brain, immune system, hormones, mood, and metabolism.
Most women are dramatically under-eating protein. 40–60g a day is not enough if you’re training, aging, or want to change your body composition.
Essential Amino Acids (EAAs) are a powerful tool to close the gap—especially when timed before training or during travel.
You can’t out-train a protein deficiency. If your training isn't landing, it might be a fuel problem.
Strength is non-negotiable after 40. It’s the gateway to power, energy, and the body you want.
Power Quotes:
“It finally looked like I was working as hard in the gym as I actually was.”
“You don’t just need protein for muscle—you need it to keep your brain, gut, immune system, and entire body running.”
“Your body’s going to activate protein synthesis one way or another—if you don’t feed it, it’ll steal it from your muscle.”
“Tracking gives you awareness. Strategy gives you power. But flexibility makes it sustainable.”
“If you want to be strong, vibrant, and powerful in your 40s—you have to train differently. And you have to fuel differently.”
Connect with Liz:
Website: https://www.lizplosser.com Instagram: https://www.instagram.com/lizplosser?igsh=MWQ4ZmdzMWswaWZyZg== Substack: https://lizplosser.substack.com
To save 20% on Kion EAAS, go to getkion.com/warrior
Connect with Amy: 💪 Need help creating your strategy? Join Warrior School: https://warriorschool.co/ 🌶️Want more tips? Follow me on Instagram: https://www.instagram.com/amykatebowe/ 🎙️Subscribe to The Warrior School Pod for more episodes like this.
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