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NAD Precursor Availability

Meaning

NAD Precursor Availability refers to the systemic supply of molecules, such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN), that the body utilizes to synthesize Nicotinamide Adenine Dinucleotide (NAD+), a vital coenzyme central to cellular energy metabolism and repair pathways. Adequate availability ensures sufficient NAD+ pools exist to support high-energy processes, including mitochondrial respiration and sirtuin-mediated DNA repair. Optimizing this supply is a focus in anti-aging and performance endocrinology. Low availability directly impairs cellular resilience.