Conclusion
In this study, the elevated NAD+ levels on days 30 and 60, along with the corresponding NAD+/NADH ratio, demonstrate that UTHEVER's potential to increase cellular NAD+ levels is associated with higher energy levels and anti-ageing effects. Increased insulin sensitivity was also associated with anti-ageing. Furthermore, the safety and efficacy of oral administration of NMN 300mg in healthy individuals have been confirmed, and oral NMN 300mg did not cause any specific adverse effects in healthy volunteers.