Brad Stanfield
Family physician in New Zealand, health research YouTuber
Brad Stanfield is a general practitioner in Auckland, New Zealand, and a Fellow of the Royal New Zealand College of General Practitioners. On his YouTube channel he reviews new research on supplements, drugs and screening. He is an author of RAPA-EX-01, a placebo-controlled trial of weekly rapamycin with home exercise in older adults, and he founded the supplement company MicroVitamin.
Updated November 1, 2026 · 4 experiments
What Brad Stanfield has tried
4 experiments we can source: 2 kept, 1 testing, 1 stopped. Trying something is not recommending it; each entry says which.
Kept
CreatineSupplements
Dates not stated · Recommends it to others
Takes 5 g a day for muscle and possible brain benefits, recommends the same dose to his patients, and says his grandmother takes it too.
“That’s the same dose my grandma and I both take.”
Brad Stanfield, Why creatine is the one supplement all longevity researchers are taking (updated June 2026) · Status checked November 1, 2026 · Suggest a correction
Whole-body MRI screeningProcedures
Started 2026 · Does not recommend it to others
Had a full-body MRI against the American College of Radiology's advice; it came back normal and he plans to repeat it in about 3 years, while telling readers it is probably best not to get one.
“I plan on repeating my MRI scan in about 3 years.”
Brad Stanfield, I got a full-body MRI. Here's why you shouldn't (April 2026) · Status checked November 1, 2026 · Suggest a correction
Testing
GLP-1 drugsDrugs
Started 2025 · Does not recommend it to others
Takes 1.25 mg of tirzepatide a week without diabetes or obesity as a personal bet on benefits beyond weight loss; he reports less food noise, 3 kg lost over 9 months and half his blood pressure medication.
“I take 1.25mg of tirzepatide every week.”
Brad Stanfield, Why I take low-dose tirzepatide (Zepbound) (June 2026) · Status checked November 1, 2026 · Suggest a correction
Stopped
SenolyticsDrugs
stopped May 2022 · Does not recommend it to others
Stopped taking quercetin and fisetin after the NIA Interventions Testing Program found that fisetin did not extend healthspan or lifespan in mice.
“New data from The Interventions Testing Program shows that Fisetin supplementation did not provide any healthspan or lifespan benefits”
Brad Stanfield, Quercetin and fisetin: why I've stopped taking them, YouTube (May 2022) · Status checked May 7, 2022 · Suggest a correction