What exactly is NAD+ and why is it suddenly everywhere—from supplement bottles to anti-aging headlines? In this episode of Supplement Source, Jeff Ventura sits down with Dr. Andrew Shao, SVP of Global Scientific and Regulatory Affairs at Niagen Bioscience, to demystify the science behind NAD+, its precursors, and why your cells might need a boost. From the impact of stress and aging to the fine line between marketing hype and scientific evidence, this candid conversation cuts through the acronyms and buzzwords to explore what we really know—and what we still don’t—about optimizing cellular health through supplementation. 

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