The fitness library that shows its receipts.
Ninety-seven volumes, programmes, field guides and cookbooks. Every factual claim traces to peer-reviewed research — meta-analyses, randomised trials, position stands. Every opinion is labelled as an opinion. No fear-mongering. No jargon left undefined.
Most fitness advice is confidently wrong.
Not maliciously. It's simply cheaper to repeat a claim than to check one. So the same ideas circulate for decades — the thirty-gram protein ceiling, the fat-burning zone, the supplement that made someone rich — untethered from the research that was supposed to support them.
The Sequeira Library takes the opposite approach, which is slower and less exciting and happens to be correct: read the studies, state what they actually found, show the citation, and admit when the evidence is thin.
Authority comes from the citation. Clarity comes from the picture. Never reverse the order.
An eight-year-old should be able to follow the explanation. A researcher should be able to check the source. Both walk away smarter. That's the whole standard.
Three doors in.
Vol. 0 — The Manifesto
What this Library believes, what it refuses to do, and how to tell a real claim from a sold one. The shortest honest introduction to everything that follows.
Get it freeVol. 1 — How to Read a Study Without Losing Your Mind
The skill that makes every other volume optional. Sample sizes, funding lines, effect sizes, and the four questions that survive contact with any headline.
Read moreVol. 9 — Supplements: What Works, What's Snake Oil
Six that clear the bar, and the anti-list of what doesn't. Including why "clinically studied" on a label can be technically true and completely meaningless.
Read moreVol. 0 — The Manifesto
Free, in full. Includes the complete audiobook. No upsell inside — just the argument for an evidence-first approach to your own body.