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Why is NAD so popular right now? A Deep Dive into the Longevity and Wellness Trend

NAD (nicotinamide adenine dinucleotide) is an essential coenzyme present in every living cell, crucial for hundreds of biological processes. But why is NAD so popular right now, and is its recent rise to fame truly backed by solid science? This authoritative guide unpacks the biology behind the wellness trend, exploring its benefits and the hype.