What should I know about nmn supplement wirkung 2?

The provided context does not contain any specific information about NMN (nicotinamide mononucleotide) supplements. NMN is often marketed for anti-aging, but human evidence for efficacy and safety is limited, mostly from animal or small human studies. Without reliable sources from the context, I cannot provide a substantiated answer. Caution against exaggerated marketing claims is advised.