Published in:
Open Access 01-12-2016 | Short report
The NAD+ precursor nicotinamide riboside decreases exercise performance in rats
Published in: Journal of the International Society of Sports Nutrition | Issue 1/2016
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Background
Nicotinamide adenine dinucleotide (NAD+) and its phosphorylated form (NADP+) are key molecules in ubiquitous bioenergetic and cellular signaling pathways, regulating cellular metabolism and homeostasis. Thus, supplementation with NAD+ and NADP+ precursors emerged as a promising strategy to gain many and multifaceted health benefits. In this proof-of-concept study, we sought to investigate whether chronic nicotinamide riboside administration (an NAD+ precursor) affects exercise performance.
Methods
Eighteen Wistar rats were equally divided in two groups that received either saline vehicle or nicotinamide riboside at a dose of 300 mg/kg body weight/day for 21 days via gavage. At the end of the 21-day administration protocol, both groups performed an incremental swimming performance test.
Results
The nicotinamide riboside group showed a tendency towards worse physical performance by 35 % compared to the control group at the final 10 % load (94 ± 53 s for the nicotinamide riboside group and 145 ± 59 s for the control group; P = 0.071).
Conclusion
Our results do not confirm the previously reported ergogenic effect of nicotinamide riboside. The potentially negative effect of nicotinamide riboside administration on physical performance may be attributed to the pleiotropic metabolic and redox properties of NAD+ and NADP+.