Staple · Performance Nutrition
Foundational nutrition. Built for output.
Built with Marcus Filly's Functional Bodybuilding
You've trained the body you can see. Now feed the systems that keep it running — a fiber-first stack for athletes who train for the long arc.
Pre-launch — founding spots opening soon
01 — The Gap
Most active eaters get half the fiber their body runs on. You optimize protein, you crash fiber — and the cost isn't dramatic. It's the slow drag you can't quite name.
The gap between how hard you train and how good you actually feel.
Bloating that doesn't match what you ate.
Recovery that takes a day longer than it used to.
Energy that fades at 3pm — even after eight hours of sleep.
Numbers on the annual physical drifting the wrong way.
Blood sugar swinging harder than it should after carbs you used to handle.
The mirror says one thing. The labs say another.
02 — The Enemy
The body is a system of flows. When the flows slow, the system stalls — bile, glucose, cholesterol, microbes, the whole quiet machinery of moving things through.
Movement is health. Stagnation is the rust. Training fights one kind — fiber fights the rest.
Why We Built This · Marcus Filly
For ten years, Functional Bodybuilding has run on one promise: look good, move well. I’ve coached thousands of people to squat, hinge, carry, and recover — to build a body that actually works.
I held myself to the same standard. Trained hard. Ate clean. Did everything I told my athletes to do.
Then I read my own bloodwork.
My cholesterol was drifting the wrong way — and nothing about how I trained or how I ate explained it. I was the guy with the program, and my own panel was telling me the program had a blind spot.
So I went looking for the variable I’d been ignoring. It turned out to be the one I’d never coached: dietary fiber.
I put fiber at the center of how I ate, and over the following months my panels came back where they should have been the whole time. But the numbers were only half of it. Digestion got lighter. Recovery felt cleaner. The work started compounding instead of just keeping me even.
That changed how I coach. Training moves the body on the outside. Fiber moves the systems on the inside — digestion, cholesterol, glucose, the quiet machinery that decides whether the effort actually adds up.
So we built the thing I wish I’d had a decade ago — and the thing I now want in the hands of every athlete I coach. That’s Staple.
03 — The Stack
Honest doses. Named, branded, clinically-studied ingredients. Every gram on the label — no proprietary blends, no kitchen-sink greens. Just the fiber that decides whether everything else you take actually lands.
25g of grass-fed whey for the muscle you can see. 7g of Sunfiber® prebiotic for the gut that decides whether the rest of it lands. Protein builds. Fiber makes the building possible.
The stack completer. Broad-spectrum fiber in a single stick — pour it into water, coffee, oats, or a smoothie. Unflavored, so it disappears.
Foundational nutrition you can carry. A real-food fiber bar for the gap between meals, the trailhead, or the bottom of the gym bag.
Strength on top of a gut that absorbs it. 5g creatine monohydrate stacked with prebiotic fiber — the performance edge, supported from the inside.
04 — The Math
No new habits to invent. The Staple stack slots into the day you already run — and the fiber math closes without changing what's on your plate.
05 — The Long Arc
Digestion gets light. Bowel rhythm normalizes. You stop thinking about it.
Recovery starts matching effort again. The 3pm fade becomes a 5pm dip.
The long-game markers trend the right way — supporting healthy cholesterol and glucose metabolism already in the normal range.
You become the athlete whose insides matched the work the whole time.
06 — Built With
Marcus's name is on the door. So we built the rest of it to the same standard — the manufacturing, the formulation, the testing.
The thesis underneath everything Staple makes. Functional Bodybuilding taught the body to move on the outside. Staple teaches it to keep moving on the inside, too.
Be first in line
Staple is pre-launch. Get on the list and founding members lock in launch pricing on the core stack — Build + Daily — before anyone else.
We'll be in touch the moment founding spots open. Welcome to the long arc.
Performance starts in the gut.