Nicotinamide mononucleotide (NMN) is a nucleotide derived from ribose and nicotinamide. Nicotinamide (a derivative of vitamin B3) is a precursor of NAD+. A long-term study indicates it can slow down the physiologic decline in ageing mice. NMN is a 1 Step NAD Precursor and does not require ATP to convert itself into NAD.

In a study by David Sinclair, mice taking NMN increased lifespan.

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