About this site
Supplement Evidence Lab exists to put, on the same page, what manufacturers claim a supplement does and what peer-reviewed literature has actually measured.
Who runs it
A software engineer with about 30 years of career (embedded systems). Not a medical professional. Precisely for that reason, carrying over the numbers from the literature unchanged, instead of personal judgment, is the only method used here. Writing and translation are assisted by AI, but the cited papers and figures were verified mechanically against public records such as PubMed.
Evidence grade definitions
| Grade | Meaning |
|---|---|
| A | Several large meta-analyses agree in the same direction, mostly GRADE certainty "high" |
| B+ / B / B- | Meta-analyses exist, direction consistent; caveats on certainty or consistency |
| C | A few small RCTs. Promising but unproven |
| D | Weak or inconsistent evidence (published as an example where popularity and evidence do not match) |
| E | Evidence mostly at animal or in-vitro level |
Grades are this site's own judgment based on the literature, with no relationship to compensation or advertising. They are updated when new meta-analyses appear.
How sources are chosen
- Meta-analyses and systematic reviews are the backbone; representative single RCTs are cited as support.
- Citations are limited to public PubMed/PMC records, linked at the end of each article.
- Industry-funded trials are not excluded, but that fact is stated inside the article.
Corrections
Misreading a paper or leaving stale information in place is this site's biggest risk. If you spot an error, contact us. Confirmed corrections are recorded inside the article.