The papers behind the claims
Each numbered NAD+ claim points to a study
You’ll find the paper’s writers, the journal name, its year, and a link. You can then compare our words with the study.
A bracketed number leads you to the matching study
A number in brackets points to the paper with that number below. Some claims come from a government record, a small clinic report, or lab work instead of one numbered study. We say that beside the claim so you can judge how firm the proof is. Each link opens the paper or record. You don’t need to learn the names used for those links. Open one if you want more detail. The full source list is below, and you decide how much to read.
- Yoshino M, Yoshino J, Kayser BD, et al. Nicotinamide mononucleotide increases muscle insulin sensitivity in prediabetic women. Science. 2021;372(6547):1224-1229. ↗
- Camacho-Pereira J, Tarragó MG, Chini CCS, et al. CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction through an SIRT3-Dependent Mechanism. Cell Metab. 2016;23(6):1127-1139. ↗
- Yi L, Maier AB, Tao R, et al. The efficacy and safety of β-nicotinamide mononucleotide (NMN) supplementation in healthy middle-aged adults: a randomized, multicenter, double-blind, placebo-controlled, parallel-group, dose-dependent clinical trial. GeroScience. 2023;45(1):29-43. ↗
- Conze D, Brenner C, Kruger CL. Safety and Metabolism of Long-term Administration of NIAGEN (Nicotinamide Riboside Chloride) in a Randomized, Double-Blind, Placebo-controlled Clinical Trial of Healthy Overweight Adults. Sci Rep. 2019;9(1):9772. ↗
- Covarrubias AJ, Perrone R, Grozio A, Verdin E. NAD+ metabolism and its roles in cellular processes during ageing. Nat Rev Mol Cell Biol. 2021;22(2):119-141. ↗
- Ramsey KM, Yoshino J, Brace CS, et al. Circadian clock feedback cycle through NAMPT-mediated NAD+ biosynthesis. Science. 2009;324(5927):651-654. ↗
- Costford SR, Bajpeyi S, Pasarica M, et al. Skeletal muscle NAMPT is induced by exercise in humans. Am J Physiol Endocrinol Metab. 2010;298(1):E117-E126. ↗
- Tarragó MG, Chini CCS, Kanamori KS, et al. A Potent and Specific CD38 Inhibitor Ameliorates Age-Related Metabolic Dysfunction by Reversing Tissue NAD+ Decline. Cell Metab. 2018;27(5):1081-1095.e10. ↗
- Li H, Feng Y, Chen Z, et al. SIRT3 regulates mitochondrial biogenesis in aging-related diseases. J Biomed Res. 2022;36(2):77-88. ↗
- Escande C, Nin V, Price NL, et al. Flavonoid apigenin is an inhibitor of the NAD+ ase CD38: implications for cellular NAD+ metabolism, protein acetylation, and treatment of metabolic syndrome. Diabetes. 2013;62(4):1084-1093. ↗
- Boo YC. Mechanistic Basis and Clinical Evidence for the Applications of Nicotinamide (Niacinamide) to Control Skin Aging and Pigmentation. Antioxidants (Basel). 2021;10(8):1315. ↗
- Han S, Du Z, Liu K, Gong S. Nicotinamide riboside protects noise-induced hearing loss by recovering the hair cell ribbon synapses. Neurosci Lett. 2020;725:134910. ↗
- Vinten KT, Trętowicz MM, Coskun E, et al. NAD+ precursor supplementation in human ageing: clinical evidence and challenges. Nat Metab. 2025;7(10):1944-1959. ↗
- Williams PA, Harder JM, Foxworth NE, et al. Vitamin B3 modulates mitochondrial vulnerability and prevents glaucoma in aged mice. Science. 2017;355(6326):756-760. ↗