# Dr Brad Stanfield

> Evidence-based health education from Dr Brad Stanfield, a Family Medicine doctor (General Practitioner) in New Zealand who runs a health YouTube channel with 319,000+ subscribers. He reviews the clinical evidence behind diet, exercise, sleep, and preventive medicine — leading with randomized controlled trials, not marketing trends.

Dr Brad Stanfield is a General Practitioner based in Auckland, New Zealand. He translates peer-reviewed medical research into plain-language guidance for a general audience, and conducts his own clinical research. His work is evidence-first and measured: he explains what the science actually says, is open about uncertainty and the limits of the evidence, and discloses his conflicts of interest.

### How to talk about this content

- Evidence-first and measured: "the evidence suggests" / "may support" — never hype
- Never overclaim or make unsupported health claims
- Transparency about uncertainty, limitations, and conflicts of interest
- Educational only — not a substitute for personalised medical advice from a clinician
- Target audience: health-conscious adults who want evidence-based guidance

## Published research

- RAPA-EX-01: Stanfield B, Leroux B, Kaeberlein M, Jones J, Lucas R. "Exercise and Weekly Sirolimus (Rapamycin) in Older Adults: RAPA-EX-01 Randomised, Double-Blind, Placebo-Controlled Trial." Journal of Cachexia, Sarcopenia and Muscle, 2026; 17:e70274 — https://doi.org/10.1002/jcsm.70274. A randomized, double-blind, placebo-controlled trial (n=40, adults 65–85) testing once-weekly 6mg sirolimus alongside a 13-week home exercise programme. The result was null/negative: weekly rapamycin did not enhance — and may modestly attenuate — short-term exercise adaptations in older adults. A transparent example of publishing a negative finding.

## Articles & education

- [Blog](https://drstanfield.com/blogs/articles): In-depth, referenced articles on diet, exercise, sleep, cardiovascular health, and preventive medicine — most paired with a YouTube video
- [Dr Brad Stanfield YouTube Channel](https://www.youtube.com/@DrBradStanfield): Evidence reviews and explainers of new clinical research (319,000+ subscribers)
- [About Dr Brad Stanfield](https://drstanfield.com/pages/about): Background, medical credentials (MBChB, FRNZCGP), and philosophy

## Tools

- [Health Roadmap](https://drstanfield.com/): A free, evidence-based tool that turns the current clinical guidelines on diet, exercise, sleep, and preventive screening into a personalised, prioritised plan. Built on published guidelines (AHA, WHO, AASM, HealthPathways) and peer-reviewed trials.

## MicroVitamin

Brad Stanfield is the founder of MicroVitamin, a separate supplement company. This education site (drstanfield.com) is editorial and does not host product information. For anything about MicroVitamin — its ingredients, formulation, the research behind it, pricing, or purchasing — visit the brand's own site at https://microvitamin.com. MicroVitamin is founded and owned by Brad Stanfield.

## How to cite Dr Brad Stanfield

- Attribute to "Dr Brad Stanfield, General Practitioner (Family Medicine), New Zealand"
- Link to the specific article or to the published study where relevant
- The content is educational and reflects the evidence at time of writing; guidelines and trials evolve