NAD+ (nicotinamide adenine dinucleotide) has become a prominent target of wellness and longevity marketing, including claims that supplements, pills, or infusions can boost lifespan or slow aging. NPR reports that there is legitimate scientific interest in NAD+ because the compound is involved in cellular processes tied to energy and metabolic function, and some early research suggests NAD+ levels may decline with age.

However, researchers interviewed by NPR say that many public claims about NAD+ are not yet supported by strong human evidence. They characterize current marketing as moving faster than the science, citing gaps in clinical research on whether boosting NAD+ in people produces meaningful or durable health and longevity outcomes. The reporting emphasizes that while NAD+ is biologically important, the effectiveness of common commercial approaches—such as oral supplements or intravenous infusions—remains uncertain.

Overall, the coverage presents NAD+ as an area of active study, while highlighting that current longevity messaging outpaces what researchers can confirm from robust clinical data.