Who's behind the checks?
Fair question — especially from a brand that spends its time telling you to stay skeptical. So here's who's doing the digging, how a check actually works, and exactly where the lines are.
One person, no name for sale
EnduranceProof is a one-person project — someone who has spent years inside the research on training, fatigue and performance, and got tired of watching solid, careful findings turned into billboards.
You'll notice there's no name or face on any of this. That's deliberate. It keeps the focus where it belongs — on the evidence and the sources, not on a personal brand — and it means there's no employer to please and no sponsor to keep happy. The only thing riding on each write-up is whether it actually holds up.
Judge the work by its sources, not by whose name is on it.
The slow way, every time
There's no secret sauce — just a boring, repeatable process, done properly:
- Start with the claim as it's sold. The exact promise on the box, the podcast, the group chat.
- Find the research — all of it. Not just the flattering studies. The awkward ones count double.
- Weigh how good it really is. How many people, how well run, how long, and who paid for it.
- Separate the lab from the road. A number on a treadmill is not the same as a faster race.
- Say how sure we are. Out loud — including "not very," when that's the honest answer.
Then it gets written in plain language, with every source linked, so you can check the checker. You can see it in practice on the first deep-dive — the carbon "super shoe" and its famous 4%.
The lines we won't cross
- No sponsors, no affiliates, no free gear kept quiet. Nobody in this sport pays us — that independence is the whole product.
- Every number comes with its source. If we can't point to where it came from, we don't print it.
- We change our minds when the evidence does — in public, with the date on it.
The full version of this — all the rules, and why they matter — lives on Why we exist.
What this is — and isn't
EnduranceProof is educational. We look into performance claims and explain what the evidence shows. We are not your coach, your dietitian or your doctor, and nothing here is personal training, nutrition or medical advice.
Endurance training and changes to how you eat, fuel or recover carry real risks. Before you act on anything you read here — especially if you have a health condition, are pregnant, or are on medication — check with a qualified professional who knows your situation. No rights can be derived from the content of this site.
Say hello, or catch us out
Got a claim that deserves a proper look? Spotted a mistake we should fix? Just want to say hi? The door's open:
→ info@enduranceproof.com
→ @EnduranceProof_ on X
→ or just reply to any email you get from us — every reply is read.
Want the next one when it's done?
One email per deep-dive. No spam, no sharing — unsubscribe anytime.