Eleven Years of NMN & Resveratrol: My Personal Experiment with Aging

At 43, I was beginning to notice things. Morning stiffness that took a while to shake off. Hair that was thinner than it used to be. Nothing dramatic — just the quiet, unmistakable sense that time was doing what time does.

Around that time I came across Dr. David Sinclair's research on aging, and it lit a spark. The idea that aging might be something we could influence — even a little — felt worth exploring. So I began taking NMN and resveratrol, and I kept taking them.

Eleven years later, I estimate I've missed only about ten days. That's the part I'm proudest of: not any single result, but the consistency itself.

I want to be honest about what this was and wasn't. My diet, exercise, and alcohol habits varied considerably over those eleven years. This was not a controlled experiment. It was one person, one daily habit, and a lot of ordinary life happening in between.

After eleven years, here is what I can honestly say about my own experience — offered as personal observation, not proof.

These are subjective experiences and ordinary clinical observations. They are not evidence that the supplements caused any of these outcomes.

NMN — nicotinamide mononucleotide — is a precursor involved in the body's production of NAD+, a molecule that plays a central role in cellular energy and repair. NAD+ levels tend to decline with age, which is part of why researchers are interested in it. Human studies have demonstrated that NMN supplementation increases measured NAD-related biomarkers.

Resveratrol is a plant compound — famously found in red wine — with a long history of laboratory research. Much of the scientific interest centers on cellular stress-response pathways, the systems cells use to cope with damage and strain.

Here is the part that matters most: neither supplement, nor their combination, has been proven to slow human aging or extend human lifespan. The biology is genuinely interesting. The proof, in humans, is not there yet.

I try to hold my enthusiasm and the evidence in the same hands. Here is an honest summary of where the research stands:

• Human NMN trials have reported increases in NAD+ biomarkers.
• Some small studies reported promising secondary outcomes, but the broader evidence has not established consistent physical-function benefits.
• A 2025 systematic review and meta-analysis found no significant improvement in several measures of muscle mass and function.
• A 2024 systematic review found insufficient clinical evidence to recommend resveratrol as a treatment.
• Long-term efficacy and safety over eleven years are simply not established by the existing short-term trials.

Could I claim the supplements caused how I feel today? No — and I won't. A personal experience involving one individual, with no control group and numerous lifestyle changes along the way, cannot establish the effects of either supplement.

Over eleven years I changed how I ate, how I moved, and how I lived — more than once. Any of those changes, or plain good fortune, could deserve the credit.

But I don't think that makes the story worthless. Personal stories aren't evidence, yet they are how we decide what questions are worth asking. Mine is offered in that spirit: a question I've been living, not an answer I'm selling.

If you'd like to read the research yourself — and I hope you do — these publications are a good place to start: