Binciken da aka wallafa a 2018 a *Nature Communications* ya gwada nicotinamide riboside (NR) a 500 mg sau biyu a rana (jimillar 1,000 mg a rana) tsawon makonni shida a manyan da ke da ƙoshin lafiya. An tabbatar da cewa ba a samu illa ba, sannan amfanin NR ya haɓaka matakin NAD+ a cikin ƙwayoyin garkuwar jini da kusan kashi 60 % idan aka kwatanta da placebo. Masu binciken sun kuma lura da alamu na raguwar hauhawar jini da sassauta jijiyoyin jini, amma ba su da hujja da za su tabbatar da fa’ida, don haka an buƙaci ƙarin gwaje‑gwaje.
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