Medical review process

1. Research and writing

Every article starts with the question a reader actually has. Writers work from the strongest evidence available, in roughly this order: systematic reviews and meta-analyses, randomised controlled trials, large observational studies, and guidance from public health bodies and professional associations. Single small studies, animal studies and manufacturer claims are described as such and never presented as settled fact.

2. Medical review

Articles that give health guidance can be reviewed by a qualified professional, such as a registered dietitian, a doctor, a pharmacist or another licensed health professional, in their area of expertise. The reviewer checks that:

• the facts, doses and figures match the cited evidence;
• benefits are not overstated and risks, side effects and interactions are mentioned;
• the article says who should talk to a doctor first (for example during pregnancy, with medication or with a health condition);
• the wording is clear and does not read as a diagnosis or a treatment plan.

When an article has been reviewed, the reviewer's name, credentials and the review date are shown at the top of it, and their profile is on our experts page. Articles without that line have not been through medical review.

3. Sources

Articles list their sources at the end, with links, so readers can check them. We prefer peer-reviewed research and official guidance and link to the original wherever possible.

4. Updates and corrections

We revise articles when new evidence or guidance changes the advice, and the “Updated” date shows the last change. If you find a mistake, email contact@wellmarrow.com; we check every report and correct confirmed errors promptly.

5. Independence

Advertisers and affiliate partners have no say in what we write or how an article is reviewed. See our editorial policy and advertising and affiliate disclosure.