Whole-blood NAD+ does not fall with age, study finds
A study published in Nature Metabolism measured whole-blood NAD+ in over 1,100 human samples, aged 20 to 100, across seven cohorts, and found no decline with age.
Source: Whole-blood NAD+ does not fall with age, study finds (x.com). Summary written with AI from the source and reviewed by rules; read the original.
What the research shows
The study, published in the journal Nature Metabolism, measured NAD+ in whole blood from more than 1,100 samples of people aged 20 to 100, drawn from seven cohorts. According to the source, levels remained stable across age and in lifestyle interventions.
NAD+ is a molecule found in cells and involved in metabolism. It has long been assumed that its decline with age drives aging, and this premise underpins many marketing claims about NAD+ supplements. The results challenge that assumption, but a single observational study does not settle the question, and related research is ongoing.
What it means
The finding suggests that falling whole-blood NAD+ with age may not be what drives aging, as had been thought. It is still unclear whether a blood measurement reflects what happens in tissues, or whether NAD+ has other important roles for health.
How to read it with care
This result does not replace a medical consultation. Anyone considering a change in diet, supplements or treatment should talk to a doctor or another qualified health professional.