Huberman takes sublingual NMN as part of his own health routine, noting that it has produced tangible benefits such as faster hair growth, stronger nails, and increased energy in the morning
Common side effects Injection-site reactions: mild redness, tenderness, swelling, occasional bruising - usually resolve within hours Skin flushing / warmth - brief, related to vasodilation Transient fatigue in the first 12 weeks of intensive protocols Mild headache - usually dose-related Higher-dose theoretical concerns Copper accumulation - each 2 mg injection adds roughly 0.03 mg of elemental copper, trivial next to the 0.92.2 mg from a normal diet
[ \- Link Opens in New Tab]( Zafra, F., Aragn, C., & Gimnez, C
Considerations: Exceeding daily doses of vitamin B12 beyond 10 mcg may induce a hematologic response in patients with folate deficiency