YouTube & Expert Fact Checks

YouTube claims compared with clinical data.

Popular videos about retatrutide and GLP-1 drugs fact-checked claim-by-claim against published clinical trial data. When the video gets something right, we show the receipts. When it doesn’t, we show that too.

Browse fact checks

17 articles

How we fact-check

  1. Transcript. We pull the full video transcript and extract every factual claim — weight loss percentages, dosing schedules, mechanism descriptions, safety assertions, comparisons to other drugs.
  2. Source. Each claim is checked against primary sources: peer-reviewed journals (NEJM, Lancet, JAMA), the trial registration on ClinicalTrials.gov, and the sponsor’s press releases and regulatory filings.
  3. Verdict per claim. We label each claim as supported, partially correct, misleading, or contradicted — and link to the underlying source.
  4. Context. Where the creator oversimplifies or adds context not in the trial, we flag it and add what the data actually shows.

Who gets reviewed

We focus on voices people are actively watching: physicians (Drs. Alex Tatem, Kevin Joseph, Dr. Dan), coaches and bodybuilding figures (Gary Miller, Nick Trigili, David DeMesquita, Colin Watson, Michael Morelli), podcasters (Andrew Huberman), and peptide-focused creators (JD Denham, Dave Nap, The Peptide Advantage).

Each review is structured the same way — creator’s strongest claim, weakest claim, and overall accuracy read. Search the directory above for a creator or topic.

Reviews are editorial, not legal or medical advice. If we get a fact-check wrong ourselves, reach out via about and we’ll update.