OnePin Peptide Library · Longevity
Nicotinamide Riboside (NR)
NR · Niagen · Tru Niagen · Basis
Nicotinamide Riboside (NR) is a vitamin B3 derivative and direct precursor to nicotinamide adenine dinucleotide (NAD+), the central electron-carrier molecule in cellular metabolism. NR is found in trace amounts in cow's milk and produced commercially as nicotinamide riboside chloride (Niagen, the most-studied form). NAD+ levels decline measurably with age (50% reduction by age 60 in many tissues), driving multiple age-related dysfunctions; NR supplementation reliably elevates NAD+ in human blood and tissues, making it one of the most-studied longevity interventions.,NR is converted to NAD+ via a 2-step pathway (NR -> NMN -> NAD+) catalyzed by nicotinamide riboside kinases (NRK1, NRK2). Unlike niacin (which causes flushing) and nicotinamide (which can inhibit sirtuins at high doses), NR raises NAD+ without these drawbacks. The Brenner lab's foundational work (Trammell et al. 2016) demonstrated dose-dependent NAD+ elevation in humans at 100-1000mg/day with excellent safety profile.,NR is positioned as one of two leading NAD+ boosters (the other being NMN, a downstream metabolite). Both elevate NAD+, but NR has 5+ years of head start in human clinical trials and a stronger published evidence base. Beyond NAD+ replenishment, NR has shown effects on mitochondrial biogenesis, sirtuin activity (SIRT1/SIRT3), DNA repair (PARP activity), endothelial function, neuroprotection, and metabolic health markers. Clinical trials are ongoing for indications ranging from cardiovascular disease to Parkinson's to chemotherapy-induced peripheral neuropathy.
Take with breakfast or lunch. Most clinical trials use 300-1000mg/day. Pairs well with TMG (250-500mg) to support methylation balance, since NAD+ metabolism consumes methyl groups.
Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.
How it works
NR is converted to NAD+ via a 2-step enzymatic pathway: nicotinamide riboside kinases (NRK1, NRK2) phosphorylate NR to NMN (nicotinamide mononucleotide), and nicotinamide mononucleotide adenylyltransferases (NMNATs) then convert NMN to NAD+. This bypasses the rate-limiting NAMPT step required for nicotinamide salvage, making NR a more direct route to NAD+ than nicotinamide. The NRK enzymes are expressed across nearly all human tissues, supporting broad tissue NAD+ elevation.,Elevated NAD+ supports the function of three major NAD-consuming enzyme families: sirtuins (SIRT1-7, NAD-dependent deacetylases regulating gene expression, mitochondrial function, and metabolism), PARPs (poly-ADP-ribose polymerases for DNA repair), and CD38 (NADase). With age, CD38 activity rises (driven by inflammation), accelerating NAD+ consumption; NR supplementation partially compensates by replenishing the substrate pool.,Downstream effects include mitochondrial biogenesis via PGC-1alpha activation, improved mitochondrial respiratory efficiency, enhanced fatty acid oxidation, reduced oxidative stress, and improved endothelial function. In older adults, NR supplementation has shown reduced systolic blood pressure (-10mmHg in stage 1 hypertension subgroup), improved muscle mitochondrial function, and modest improvements in inflammatory markers (IL-6, TNF-alpha).
NR is converted to NAD+ via a 2-step enzymatic pathway: nicotinamide riboside kinases (NRK1, NRK2) phosphorylate NR to NMN (nicotinamide mononucleotide), and nicotinamide mononucleotide adenylyltransferases (NMNATs) then convert NMN to NAD+. This bypasses the rate-limiting NAMPT step required for nicotinamide salvage, making NR a more direct route to NAD+ than nicotinamide. The NRK enzymes are expressed across nearly all human tissues, supporting broad tissue NAD+ elevation.,Elevated NAD+ supports the function of three major NAD-consuming enzyme families: sirtuins (SIRT1-7, NAD-dependent deacetylases regulating gene expression, mitochondrial function, and metabolism), PARPs (poly-ADP-ribose polymerases for DNA repair), and CD38 (NADase). With age, CD38 activity rises (driven by inflammation), accelerating NAD+ consumption; NR supplementation partially compensates by replenishing the substrate pool.,Downstream effects include mitochondrial biogenesis via PGC-1alpha activation, improved mitochondrial respiratory efficiency, enhanced fatty acid oxidation, reduced oxidative stress, and improved endothelial function. In older adults, NR supplementation has shown reduced systolic blood pressure (-10mmHg in stage 1 hypertension subgroup), improved muscle mitochondrial function, and modest improvements in inflammatory markers (IL-6, TNF-alpha).
What to expect
Days 1-14: NAD+ levels rise. Some users notice energy / clarity early; many no subjective change.
Evidence
Interactions & stacking
What's safe to combine, and what belongs in a separate pin.
Safe & synergistic
Keep separate
Pharmacokinetics
Storage. Store at room temperature (20-25C) in a cool, dry place. Niagen capsules are shelf-stable for 18-24 months. Powder form may degrade faster - keep sealed and dry. Refrigeration extends shelf life but not required.
Regulatory status
Classified as a dietary supplement in the US (FDA NDIN status as of 2016 for ChromaDex's Niagen). GRAS (Generally Recognized as Safe) self-affirmed. Available over the counter. EU Novel Food authorization granted 2017. Major commercial brands include Tru Niagen (ChromaDex/Niagen) and Basis (Elysium, NR + pterostilbene).
Put it to work
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The guide & community
The complete Nicotinamide Riboside (NR) walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.
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