Task: Answer Verification
Input (English): Question: Does the NAD ( + ) precursor nicotinamide riboside decrease exercise performance in rats?
Answer: 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(+).
Output (English): yes