Skip to content
GLP Loss
← Our writers
Evidence & trials

Owen Castellanos

Reads the trial, not the landing page — and says plainly where a protocol has no evidence behind it.

Owen signs the research desk, covering the clinical literature on semaglutide, tirzepatide and the rest of the incretin class. That means what a trial was powered to show, what the effect sizes actually were, and the distance between a labeled dose and the protocols sold online. Every claim under this byline carries a citation you can open.

What they cover

  • Semaglutide and tirzepatide clinical trials
  • Incretin pharmacology and GLP-1 receptor agonism
  • Dose titration schedules and tolerability
  • Compounded versus FDA-approved drug regulation
  • Evidence grading: human, animal, in-vitro
  • Off-label and microdose prescribing evidence

Articles by Owen Castellanos

5 pieces