Niacin.
D000042:Absorption; D001161:Arteriosclerosis / Q000517:prevention & control; D001693:Biological Transport, Active; D004032:Diet; D006801:Humans; D009243:NAD / Q000378:metabolism*; D009249:NADP / Q000378:metabolism; D009525:Niacin / Q000096:biosynthesis / Q000378:metabolism / Q000502:physiology*; D010383:Pellagra / Q000209:etiology
D009243:NAD; D009525:Niacin; D009249:NADP