Vote for Charles for Trainer of the year at The World MMA Awards!

https://www.worldmmaawards.com/votenow/

When people think about the UFC, they picture the walkouts, the knockouts, the highlight reels. But long before fighters step into the Octagon, there’s another fight happening, one with the scale, with food, with the limits of the human body.

I sat down with Charles Stull, Director of Performance Nutrition at the UFC Performance Institute, to talk about that hidden battle. Charles has shaped how some of the greatest fighters in the world approach weight cutting, recovery, and performance. He’s not just a dietitian — he’s someone who’s helped redefine what it means to fuel athletes in one of the most demanding sports on earth.

In this conversation, we break down the science, the strategy, and the reality of nutrition in combat sports. We talk about what’s working, what’s broken, and what it really takes to push the limits of human performance inside the UFC.

For me, this was more than just an interview. It was a chance to sit across from someone who has seen behind the curtain, and who is changing the way fighters prepare for the fight before the fight.

✅ Fuel Your Performance – Protekt Products

Electrolytes that actually work. Liquid, clean, and built for warriors. Hydration, energy, and recovery—backed by science and performance.

👉 http://protekt.com/truth

🏋️‍♂️ Train Hard. Recover Harder – Tuft & Needle - Use Code: TRUTHSLEEP to save an additional 10% off your next mattress!

Better sleep = better performance. Upgrade your recovery with the only mattress I recommend. 

👉 https://tuftandneedle.attfm2.net/c/5951425/662499/10403

🥩 Wild. Healthy. Sustainable – Maui Nui Venison

The most nutrient-dense red meat on the planet. Ethically harvested wild venison from Hawaii—packed with protein, low in fat, and insanely delicious.

👉 https://mauinuivenison.com/truth

🍲 Real Food That Never Fails – Essential Provisions LLC - Save 10% with the link below

Shelf‑stable meals and performance blends built on Chef‑crafted, clinical‑nutrition principles. Up to five years of ambient storage, gluten‑free, non‑GMO, preservative‑free, and developed originally for Special Forces. Meals that taste like homemade but work like mission-critical fuel.

👉 https://essentialprovisions.com/discount/TRUTH10

🔪 Blades You Can Bet Your Life On – Half Face Blades

Crafted for operators, adventurers, and people who demand the best. These knives are no joke.

👉 https://www.halffaceblades.com/

Charles' Instagram

https://www.instagram.com/the_angry_dietitian/

Follow Truth Serum Podcast

Instagram: https://www.instagram.com/tylermintonnutrition/?hl=en

Podcast IG: https://www.instagram.com/truthserumpodcast_/?hl=en

TikTok: @TruthSerumPod

Website: https://ethosnutritioncoaching.com/

Newsletter: https://ethosnutritioncoaching.com/truth-serum-weekly-newsletter/