FitProven
About FitProven
What is FitProven?
FitProven is an evidence-based fitness knowledge graph — think "Snopes for fitness claims." We evaluate common fitness claims using peer-reviewed research and assign transparent confidence scores.
How Scoring Works
Every claim is evaluated based on the studies submitted as evidence. Each study is classified as:
- PRO — supports the claim
- AGAINST — contradicts the claim
- NEUTRAL — relevant but doesn't clearly support or contradict
Each study is also weighted by its design. The stronger the methodology — aggregation across many studies, randomization, blinding, and control — the more it counts. Every design carries some weight, from meta-analyses down to anecdotes:
| Study Type | Base Weight |
|---|---|
| Meta-Analysis | 1.0 |
| Umbrella Review | 0.95 |
| Systematic Review | 0.9 |
| Double-Blind RCT | 0.85 |
| RCT | 0.8 |
| Crossover Trial | 0.75 |
| Non-Randomized Trial | 0.6 |
| Prospective Cohort | 0.6 |
| Retrospective Cohort | 0.5 |
| Case-Control | 0.45 |
| Cross-Sectional | 0.4 |
| EMG Study | 0.35 |
| Case Study | 0.3 |
| Narrative Review | 0.3 |
| Animal Study | 0.25 |
| In Vitro | 0.2 |
| Expert Opinion | 0.2 |
| Anecdotal | 0.1 |
An individual study's effective weight is its design weight multiplied by a per-study quality rating (sample size, methodological rigor, conflicts of interest). The confidence score is then: PRO weight / (PRO weight + AGAINST weight) × 100. Neutral evidence is listed but does not move the score, and sources still awaiting review never affect it.
How to Contribute
Anyone can submit a source — a link or a study name — for an existing claim, or propose a new claim for evaluation. Submitted sources enter a research queue where they are read, classified, and weighted before they count toward the score.
Browse claims and click "Submit a Source" to get started.