Brian McDowell, RD

Brian McDowell is a Registered Dietitian and the Chief Medical Reviewer at What's In It? Brian personally reviews every supplement analysis, ingredient assessment, and product score published on this site before it goes live.

Supplement marketing is loud. Supplement Facts panels are quiet. My job is to make sure what we publish reflects what's on the panel and what the evidence actually says — not what the label on the front wants you to believe. — Brian McDowell, RD

Credentials

• Registered Dietitian (RD), recognized by the Commission on Dietetic Registration.
• Licensure and registration details available on request: hello@whatsinit.co.

Role at What's In It?

As Chief Medical Reviewer, Brian:

• Reviews every product analysis, ingredient page, and scoring decision before publication.
• Approves the methodology behind each category ranking (Best Iron, Best Joint, and so on).
• Sets the clinical dose thresholds used by our analyst team.
• Signs off on safety language, contraindications, and interaction warnings on every review.
• Leads the annual re-review of all published product scores.

Brian's byline — Medically reviewed by Brian McDowell, RD — appears on every health-related page on this site. If you see his name, he read it.

Independence statement

Brian does not hold paid consulting relationships, employment positions, or compensated endorsements with any supplement brand covered on What's In It? His compensation is paid solely by What's In It? and is not tied to any review outcome.

Contact

• Editorial inquiries: hello@whatsinit.co
• Credential verification: On request, at the email address above.
• Corrections: hello@whatsinit.co

Reviews Brian has signed off on