+51% blood NAD+ at day 14
Mean increase from baseline with 300 mg NR daily in overweight, otherwise healthy adults.
Conze et al. · Scientific Reports
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.
140 adults across the study · 8 weeks · Highlighted result: 300 mg/day, day 14. DOI: 10.1038/s41598-019-46120-z.