. "The chemical reactions and pathways resulting in the breakdown of nicotinamide riboside, the product of the formation of a glycosidic bond between ribose and nicotinamide." . . . "nicotinamide riboside catabolic process" . "N-ribosylnicotinamide catabolic process" . "nicotinamide riboside breakdown" . "nicotinamide riboside catabolism" . "nicotinamide riboside degradation" . . .