CRYSTALLINE FORM OF NICOTINAMIDE RIBOSIDE

Provided are crystalline forms of nicotinamide riboside, including a Form II of nicotinamide riboside chloride: nicotinamide riboside chloride. Also disclosed are pharmaceutical compositions comprising the crystalline Form II of nicotinamide riboside chloride, and methods of producing such pharmaceutical compositions. In other aspects, the present disclosure pertains to methods comprising administering to a subject the crystalline Form II of nicotinamide riboside chloride. The present disclosure also provides methods of preparing the crystalline Form II of nicotinamide riboside chloride. Also provided are a crystalline Form II of nicotinamide riboside chloride that is prepared according to any of the disclosed methods for preparing the crystalline Form II.