NMN and NR have longer safety track records in humans (trials up to 12 months), whereas 5-Amino-1MQ data stops at 12 weeks
You can find Vitamin B12 naturally in animal products like clams, trout, salmon, and animal liver
B12 Intake In general, vitamin B12 should be ingested through your daily diet
Anemia Vitamin B12 and folate are essential for the formation of red blood cells
Lopatina T, Kalinina N, Karagyaur M, Stambolsky D, Rubina K, Revischin A, Pavlova G, Parfyonova Y, Tkachuk V (2011) Adipose-derived stem cells stimulate regeneration of peripheral nerves: BDNF secreted by these cells promotes nerve healing and axon growth de novo