The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
New interesting placebo-controlled study assessing 500 mg of nicotinamide riboside [NR] taken 2X daily in 70-80 year olds. Increases in NAD+ in blood were detected, but not in muscle, despite lower inflammation and, unexpectedly, mitochondrial activity.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
Yes. And there was no statistical significance in anything. It raised NAD levels, but there was no statistical significance. There was trending improvement in the vascular system, but there was no effect on endurance.
nicotinamide rai beside had no effects on metabolic function motor function or exercise capacity and performance
another randomized placebo-controlled trial involving 60 middle-aged and older adults between the ages of 55 and 79 years old demonstrated that a 500 milligram dose of nicotinamide right beside twice daily for a total of one gram per day for six weeks was well tolerated and increased nad levels in white blood cells by 60% the study participants also experienced improvements in blood pressure and aortic stiffness but these effects were not statistically significant possibly due to the size of the dose or the relatively small number of people in the study
the data seems to indicate that oral and nicotinamide ride beside can raise nad levels in whole blood and in white blood cells but that's the only conclusion that can be made