PMID: 25384620
Vials (NAD+, 500 mg each) A 500 mg vial covers roughly 510 days at 50100 mg/day, so plan multiple vials per week depending on your dose
Vitamin B12 is generally very well-tolerated by most individuals
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In fact, the study authors stated that the epithalamin-treated patient group exhibited significantly lower mortality, decelerated aging, and normalized levels of melatonin production and lipid metabolism, compared to the control group [8]
Additionally, common adverse effects, such as gastrointestinal discomfort including diarrhea, further reduce compliance (Chen Z