Sinclair NAD+/Sirtuin Stack

The Sinclair NAD+/Sirtuin Stack is the archetypal daily longevity protocol: NMN for NAD+ restoration, resveratrol for SIRT1 activation, and spermidine to induce autophagy. This is not the 'shotgun' PhD-biohacker cocktail with five NAD+ precursors and a half-dozen herbal AMPK-boosters — it's the focused, evidence-driven regimen built around three complementary levers that cover mitochondrial health, DNA repair, and proteostasis. It's for users serious about foundational healthspan support: the protocol is daily, sustainable, and light on side effects. You won't notice instant results, but measurable metrics — blood NAD+, aerobic capacity, and long-term markers — do move. Not a magic bullet for aesthetics or cycles, but the right substrate stack for anyone layering longevity onto performance, physique, or looksmaxxing goals.

• NMN directly replenishes NAD+, the critical fuel for sirtuins (SIRT1-7), PARP enzymes, and mitochondrial energy metabolism. It operates upstream, setting the foundational tone for repair, recovery, and metabolic health. Human RCTs confirm raised NAD+ pools, improved insulin sensitivity, and aerobic improvements in middle-aged users.
• Resveratrol acts further downstream — it directly activates SIRT1, giving you synergy with the NAD+ boost from NMN. It also mildly upregulates NO/eNOS for vascular support, brings a weak anti-aromatase effect, and supports stress resistance via AMPK. Bioavailability may be poor, but its metabolites still execute most of the activity; it belongs in the stack more for the sirtuin angle than any antioxidant or anti-estrogen hype.
• Spermidine tackles autophagy, working independently of the NAD+/SIRT1 axis. Its core value is the maintenance of cellular recycling and proteostasis, both in the context of aging and as background support during high-repair-demand windows (like running gear). The three together map onto distinct levers: NMN (substrate), resveratrol (activator), spermidine (cellular housekeeping) — no redundancy, each hitting a separate lane. This ensures you're not just throwing ingredients at the wall — every compound has a role and minimal overlap.

This stack is the closest thing to a "no-miss" daily protocol for anyone serious about longevity. Three compounds, three mechanisms, minimal downside. Run it as a base layer and focus your money elsewhere before trying to optimize further. Ready to level up? Layer in lipid support (berberine, citrus bergamot) or fasted cardio — don't bother with more NAD+ precursors or exotic sirtuin agonists.