Sabuwar binciken meta‑analysis na cibiyar sadarwa wanda ya haɗa ƙididdiga daga gwaje‑gwaje 27 da mutane 1,599 ya kwatanta NMN, NR, NADH da nicotinamide. Sakamakon ya nuna NMN na ƙara juriya, NADH na inganta tunani a masu nakasar kwakwalwa, amma babu wani ɗayan aka samu yana rage gajiya ko inganta barci. Karfi ba ta canza ba, kuma fa'idar ingancin rayuwa (QoL) ba ta da ƙarfi sosai.
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