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About

Spencer Maxwell Shilstone

Founder · MaxWell Nutrition

Spencer Maxwell Shilstone

Integrative Performance Specialist
NASM-CPT, CES, PES, CNC
WWL-TV On-Air Fitness & Nutrition Expert

My name is Spencer Maxwell Shilstone. I'm the founder of MaxWell Nutrition — and the person behind every program, every article, and every piece of content on this platform.

Maxwell is my middle name. It's been the middle name of every man in the Shilstone family for eight generations. Max + Well. Maximum Wellness. Not just physical fitness — but helping people reach the highest version of their overall health.

Where It Started

A Childhood in the Ring

My father, Mackie Shilstone, spent his career as a performance coach — working with more than 3,000 professional athletes over 43 years, including Serena Williams, Peyton Manning, Michael Spinks, and the New Orleans Saints. He pioneered what he called the Integrative Performance Specialist before that role had a name.

🥊At five years old, while my father was training heavyweight contender Riddick Bowe, I got in the ring with Bowe and landed a punch. He went down. It was filmed and aired as a feature segment before the Riddick Bowe vs. Andrew Golota II fight. This is one of my earliest memories, and where my love of sports began. 
⚾I followed my father to boxing camps, MLB training camps, and through the Serena Williams years — absorbing the methodology, the discipline, and the philosophy behind what actually works.
📚After graduating from Ole Miss in 2014 — Business degree, Journalism minor — I went to work inside our family's GNC franchise. I started sweeping floors at 12. By the time I was done, I was running all nine stores.

The Hard Part

I thought I knew what I was doing. Until I stepped on an Tanita scale.

On the road constantly, sitting more than I ever had, eating fast because there was always somewhere else to be — I ended up in a place I didn't see coming.

30%
Body Fat
in my Early twenties
85 lbs
Lost through cycling &
intermittent fasting
2,000+
Miles ridden
that year

⚠️ But I Did It Wrong

All that endurance work with no strength training tanked my testosterone. The cycling position made my posture worse. My back didn't get better — it got more complicated. I'd fixed the number on the scale and quietly broken everything underneath it.

That's when the real education started. I got my NASM certifications — not to check a box, but because I was in pain and needed to understand it from the inside.

🎓Certified Personal Trainer (NASM-CPT)
🦴Corrective Exercise Specialist (NASM-CES)
⚡Performance Enhancement Specialist (NASM-PES)
🥗Certified Nutrition Coach (NASM-CNC)

I worked with physical therapists, chiropractors, and my father. I built a program around my actual life — a desk job, a compromised posture, a body that needed to move better before it could perform better. That program became Strong and Lean.

The Work Since Then

Six years of work I can't always talk about. And some I can.

Everything I've built since leaving GNC has been shaped by two things: the people I've trained, and the problems I've had to solve.

🪖

USASOC · Best Ranger

In 2019, helped a two-man team from U.S. Army Special Operations Command prepare for the Best Ranger Competition — a 65-hour test of strength, endurance, and mental toughness. They finished in the top five.

📺

WWL-TV · CBS New Orleans

For three years, appearing every Wednesday morning on WWL-TV as the station's fitness and nutrition expert — carrying forward the same segment my father held for over two decades.

⚖️

Louisiana Bar Association

Spoken on corporate performance for the Louisiana Bar Association — because the same principles that protect an athlete's career apply directly to someone sitting at a desk for ten hours a day.

The Programs

Built from experience. Designed for where you are.

Whether you want to lose fat, fix your posture, perform at a higher level, or just move through life without pain — there's a program built for where you are.

Corrective Performance

Strong & Lean

For people dealing with the physical cost of sitting too much — lower back pain, poor posture, lost conditioning. Gym-based, four days a week, with corrective work woven in throughout.

Tactical Fitness

Ranger Ready

For those who want to train at a tactical level. Functional strength, explosive power, and long-duration endurance — built on the same principles I developed with USASOC.

Mackie Shilstone · Classic

Lean and Hard

One of my father's programs — refined over decades with thousands of professional athletes. A proven system for body composition and sustained performance.

Mackie Shilstone · Classic

Fat Burning Bible

My father's second program — the framework used with NFL players, MLB athletes, and Olympic-level competitors. A complete blueprint for fat loss built on 43 years of real-world results.

On Supplements

Behind the curtain of an industry that runs more on hype than science.

After leaving GNC and seeing how the industry actually operates, I wanted to partner with a manufacturer I trust — and offer products that actually have the research behind them to be worth your money.

✅Supplements are supplemental. That's just a fact. But most of us don't eat a perfect diet — so they have their place when they're the right ones, at the right dose, for the right reason.
🔬Every product I carry is third-party tested for identity, potency, and purity. What's on the label is what's in the bottle. That's the only standard I'll hold them to here.
🚫No ingredients chosen for marketing copy instead of results.

One-on-One Coaching

If you want more than a program

Overwatch

My one-on-one coaching service. Custom programming, recovery management, and real accountability. Spots are limited — this is not a template, it's a fully individualized program built around your goals, your movement, and your data.

If you're in the New Orleans area and want to go through a full integrative performance evaluation in person — including lab work, DEXA scan, CPX exam, and physical therapy assessment through Ochsner Health — that option is available.

Reach out: spencer@maxwellnutrition.com

Train Like You Fight. Fight Like You Train.
Live life with Focus, Intent, and Purpose.
Welcome to MaxWell Nutrition.