BrotherIron
VIP Member
- Mar 6, 2011
- 10,928
- 3,148
That’s fair. NMN definitely has good human data behind it, especially in older men. I’m not anti-NMN at all. Those studies you linked (the Nature paper, the MIB-626 trial, and the multicenter dose-dependent study) all show that NMN can elevate NAD metabolites and improve some metabolic markers even in middle-aged and elderly adults.
My angle isn’t that NMN “doesn’t work.”
It’s that NMN relies on a multi-step conversion pathway, and that pathway, particularly NAMPT is the rate-limiting step for actually turning precursors into usable NAD+. That bottleneck gets slower with age, with inflammation, and it varies dramatically between tissues. Some tissues respond great, others barely move the needle.
Injectable NAD⁺ just bypasses all of that.
You’re delivering the actual end-product directly into circulation instead of hoping enough precursor survives digestion and passes through the NAMPT choke point.
So it’s really a difference in mechanism, not “NMN good vs bad.” NMN works, the studies show that. I’m just choosing to test the direct route for a while and see how my performance, recovery, and mitochondrial output respond without relying on the whole conversion chain.
My angle isn’t that NMN “doesn’t work.”
It’s that NMN relies on a multi-step conversion pathway, and that pathway, particularly NAMPT is the rate-limiting step for actually turning precursors into usable NAD+. That bottleneck gets slower with age, with inflammation, and it varies dramatically between tissues. Some tissues respond great, others barely move the needle.
Injectable NAD⁺ just bypasses all of that.
You’re delivering the actual end-product directly into circulation instead of hoping enough precursor survives digestion and passes through the NAMPT choke point.
So it’s really a difference in mechanism, not “NMN good vs bad.” NMN works, the studies show that. I’m just choosing to test the direct route for a while and see how my performance, recovery, and mitochondrial output respond without relying on the whole conversion chain.