Repeat dose NRPT (nicotinamide riboside and pterostilbene) increases NAD+ levels in humans safely and sustainably: a randomized, double-blind, placebo-controlled study
Author(s)Dellinger, Ryan W.; Santos, Santiago Roel; Morris, Mark; Evans, Mal; Alminana, Dan; Marcotulli, Eric; Guarente, Leonard Pershing; ... Show more Show less
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NRPT is a combination of nicotinamide riboside (NR), a nicotinamide adenine dinucleotide (NAD⁺) precursor vitamin found in milk, and pterostilbene (PT), a polyphenol found in blueberries. Here, we report this first-in-humans clinical trial designed to assess the safety and efficacy of a repeat dose of NRPT (commercially known as Basis). NRPT was evaluated in a randomized, double-blind, and placebo-controlled study in a population of 120 healthy adults between the ages of 60 and 80 years. The study consisted of three treatment arms: placebo, recommended dose of NRPT (NRPT 1X), and double dose of NRPT (NRPT 2X). All subjects took their blinded supplement daily for eight weeks. Analysis of NAD⁺ in whole blood demonstrated that NRPT significantly increases the concentration of NAD⁺ in a dose-dependent manner. NAD⁺ levels increased by approximately 40% in the NRPT 1X group and approximately 90% in the NRPT 2X group after 4 weeks as compared to placebo and baseline. Furthermore, this significant increase in NAD⁺ levels was sustained throughout the entire 8-week trial. NAD⁺ levels did not increase for the placebo group during the trial. No serious adverse events were reported in this study. This study shows that a repeat dose of NRPT is a safe and effective way to increase NAD⁺ levels sustainably.
DepartmentMassachusetts Institute of Technology. Department of Biology
npj Aging and Mechanisms of Disease
Dellinger, Ryan W. et al. “Repeat Dose NRPT (nicotinamide Riboside and Pterostilbene) Increases NAD+ Levels in Humans Safely and Sustainably: a Randomized, Double-Blind, Placebo-Controlled Study.” Npj Aging and Mechanisms of Disease 3, 1 (November 2017): 17 © 2017 The Author(s)
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