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Klein says he's personally not convinced these supplements even if the labels are accurate have been studied adequately enough in humans to show "the benefits outweigh any harm." As for the IV infusions, Pojednic points to data from her lab consisting of 14 people in total and another, similarly small study as evidence that they appear to be "quite safe," though NAD+ infusions did elicit a quite unpleasant experience, with "moderate to severe abdominal cramping, diarrhea, nausea, vomiting," according to her study
NAFL, the first stage of NAFLD, can progress to nonalcoholic steatohepatitis (NASH) 4,5
Consult your doctor if problems persist
The safety and efficacy of N-acetylcysteine as an augmentation in the treatment of obsessive-compulsive disorder in adults: a systematic review and meta-analysis of randomized clinical trials
NNMT NAD+, , SIRT1 SIRT3,