---
title: "How We Source Every Page | Plainly Graded"
description: "Where our facts come from, how every claim links to its public source, and what the dates on each page mean."
canonical: https://plainlygraded.com/how-we-source/
breadcrumb: "Home > How we source our pages"
publisher: Plainly Graded
policy: "No dosing, no sourcing, no vendor links. Every claim cites a public source."
---

> We collect and compare information from public, cited sources. We cannot guarantee that it is complete, current or correct. This is not medical advice. Only a doctor can prescribe, and a doctor should confirm anything you read here before you act on it.

# How we source our pages

We are not clinicians and we don't give medical opinions. We read what regulators, trial registries and peer-reviewed studies say, and we report it, graded and dated, with a link to each source.

## Where our facts come from

In order of preference: FDA and other regulator documents, the Federal Register, FDA drug labels (DailyMed), ClinicalTrials.gov, the WADA Prohibited List, and peer-reviewed studies indexed on PubMed. News reports and law-firm summaries are used only when nothing primary exists, and we say so in the sentence. Seller websites, forums and social posts are never used as evidence; we only quote them to show what is being claimed.

## Every claim links to its source

Each claim on a page links to the public source it comes from, so you can open it and read it yourself. We collect and display what sources say; we don't independently verify them, and we can't guarantee they are complete, current or correct.

## Grades are counted, not judged

An evidence grade follows from the kinds of studies that exist, and the page shows the count, so anyone can check it. See [how we grade evidence](https://plainlygraded.com/evidence-grading/).

## What the dates mean

Each page shows the date its text last changed, and every status line says the date it is current to. We never change a page's updated date without changing its content.

## Archived copies

For regulatory and safety claims we keep an archived copy of the source document as it read on the day we cited it, linked from the page's source list, so a later change to the original can't silently change what we cited.

---

We collect and compare information from public, cited sources. We cannot guarantee that it is complete, current or correct. This is not medical advice. Only a doctor can prescribe, and a doctor should confirm anything you read here before you act on it.

Canonical page: https://plainlygraded.com/how-we-source/