MOLECULE · MATERIA №19
NAD+
The coenzyme central to cellular energy and longevity research.
- Family
- molecule
- Origin
- Endogenous, supported by NR/NMN
- Format
- Capsule or sublingual
- Best taken
- Morning
NAD+ is a coenzyme present in every cell, essential to the reactions that turn food into ATP and that maintain DNA integrity.
Levels decline with age. NAD+ precursors like NR and NMN are the focus of much current longevity research.
How it works in the body
Acts as a coenzyme in hundreds of reactions including those carried out by sirtuins, a family of enzymes implicated in cellular ageing.
What you can expect
Cellular energy
Supports the reactions that convert food to usable cellular energy.
Good for: energy · longevity
DNA maintenance
Coenzyme for the enzymes that maintain DNA integrity.
Good for: longevity
04 — PROTOCOL
Follow product-specific dosing for NAD+ precursors. Effects are systemic and accrue over time.
05 — SOURCING
Look for branded, third-party tested NR or NMN. Honest dosing matters more than marketing.
06 — CAUTION
Long-term safety data is still maturing. Discuss with a clinician if pregnant, nursing or on medication.
What the studies say
NAD+ precursors (NMN, NR) are the most-studied longevity supplements of the past decade. Multiple human RCTs now confirm they raise blood NAD+ — the question of clinical benefit beyond that biomarker is active research.
Honest caveatRaising NAD+ in blood is well-replicated. Translating that biomarker into measurable healthspan/anti-ageing outcomes in humans is still being tested.
- 01RCT
Nicotinamide adenine dinucleotide metabolism and arterial stiffness after long-term NMN supplementation: a randomised, double-blind, placebo-controlled trial
Katayoshi T, Uehata S, Nakashima N, Nakajo T, Kitajima N, Kageyama M, Tsuji-Naito K · Scientific Reports (Nature) · 2023
“Long-term oral NMN supplementation significantly increased blood NAD+ concentrations and was associated with improvements in arterial stiffness markers compared with placebo.”
Plain EnglishRandomised, placebo-controlled human trial: NMN raises blood NAD+ and improves arterial stiffness over the long-term protocol.
- 02RCT
Association between blood NAD levels and laboratory parameters at baseline and after NMN supplementation in middle-aged healthy individuals
Various · GeroScience (Springer) · 2025
“Post-hoc analysis confirmed dose-dependent increases in blood NAD+ with NMN and identified associations with several blood-chemistry parameters in middle-aged healthy adults.”
Plain EnglishConfirms dose-dependent NAD+ increase and links NAD+ levels to specific blood-chemistry markers.
All citations link to PubMed, PubMed Central or the original publisher. We do not reproduce full study text. References last verified by SACRAHAUS editorial.
08 — PRODUCTS
Products with NAD+
08 — PAIRS WELL WITH
Build the stack
SUPPORTS
What NAD+ can help with
APPEARS IN THESE RITUALS
Honest answers
- Will I feel NAD+ working?
- Most people don't 'feel' it like caffeine. The benefit is systemic and shows up over weeks, not minutes.
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