Whats the difference between Nicotinamide Riboside and Nicotinamide Mononucleotide?

Alvin2

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I managed to get my hands on some Nicotinamide Riboside for dirt cheap (amazon price error?) so i am wondering if it would have the same effect as Nicotinamide Mononucleotide?
 

Pyrrhus

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They are both forms of the B vitamin niacin, which is converted to NAD+ in the body.

I see that nicotinamide needs roughly three enzymatic steps to get to NAD+, nicotinamide riboside needs two enzymatic steps to get to NAD+, and nicotinamide mononucleotide only needs one enzymatic step to get to NAD+.

I can certainly see how some people with different metabolisms might benefit from a vitamin that requires less processing...