This study found that NMN supplementation did not have an impact on tumor growth.
In this research, mice were pretreated with NMN for two weeks, then they were subcutaneously injected with mouse lung cancer cells to form tumors.
When the tumor volume reached about 300 mm3, NMN was then intraperitoneally injected for three weeks. The tumor incidence, tumor size and volume were then measured.
According to the authors:
“The role of NMN in tumor formation and lung cancer progression in vivo was fully investigated.”
“NMN does not affect the proliferation of tumor cells in vivo."