There's a molecule inside every cell in your body that you've probably never heard of. It's called NAD+.

It drives over 500 enzymatic reactions. DNA repair. Energy production. Cellular communication. It's not optional. It's foundational.

And by the time you're 50, you've lost roughly half of it. That's measured. Published. Replicated.

This is why NMN matters. Nicotinamide mononucleotide is a direct precursor to NAD+. You take NMN, your body converts it into NAD+. Levels go back up. The machinery starts running properly again.

Harvard geneticist David Sinclair brought this into the spotlight. His lab's research showed NMN in aged mice restored NAD+ levels to those of young mice. Energy improved. Insulin sensitivity improved. Cardiovascular function improved. The mice didn't just live longer — they functioned younger.

Mice aren't humans. But human trials have followed. From my research, studies show improved muscle insulin sensitivity, increased aerobic capacity, and better cellular energy markers. The results are consistent and the direction is clear.

500 milligrams in the morning. Sublingual or capsule, on an empty stomach for best absorption. Morning dosing aligns with your body's natural NAD+ cycle — levels peak in the morning and decline throughout the day.

NMN isn't a stimulant. You won't feel a jolt. What people typically report is a gradual return of energy, endurance, and mental clarity that they didn't realise they'd lost — because the decline was so slow.

NMN restores the fuel. But fuel needs to reach your cells through oxygen-rich blood. And there's a vitamin most people take the wrong form of that controls exactly that.

Ask me about B12 Methylcobalamin next. The wrong form could be doing you nothing at all.