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Supplements
What works, what does not, and what the research actually says — on supplements, medications, and everything in between.
Your Supplements Should Not Come From Amazon. Here Is Where to Get Them.
Almost every blog I write ends with a recommendation, and almost every time, the first email I get back asks the same thing: which brand, and where do I buy it? Until now, my answer has been scattered across a dozen posts and a lot of office visits. So I built two stores, and I want to explain why there are two of them, because the line between them is deliberate. Anything you swallow comes from my Fullscript store. Everything else, the RO water filter, the nasal spray, the g
Octavian M. Belcea, MD
Oct 113 min read
The Truth Behind the Melatonin–Heart Failure Headlines
A recently released study has raised eyebrows in the medical community: long-term use of melatonin (3 - 10 mg in this study) was associated with a significantly increased risk of heart failure, hospitalizations, and even all-cause mortality in adults with chronic insomnia. While the study was observational (meaning it found an association, not causation), it’s still an important reminder of something I’ve seen repeatedly in my practice: melatonin is a hormone, not a vitamin,
Octavian M. Belcea, MD
Nov 15, 20252 min read
Vitamin B3: The Simple Vitamin That Could Cut Your Skin Cancer Risk in Half
Many of my patients know that I’m always looking for practical, evidence-based ways to reduce disease risk and extend healthy lifespan. One of the simplest tools for protecting your skin may already be sitting on the pharmacy shelf: vitamin B3 , also known as nicotinamide (or niacinamide ). A new study from Vanderbilt University Medical Center and the U.S. Veterans Affairs system looked at more than 33,000 veterans and found that those taking nicotinamide had a significantly
Octavian M. Belcea, MD
Oct 29, 20252 min read
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