- Nicotinamide adenine dinucleotide (NAD) is a molecule derived, among others, from vitamin B3.
- Recent studies have highlighted the role it plays in maintaining body systems ‘youthful’, which has led to the suggestion that NAD supplementation could help slow down aging and boost longevity.
- But how much truth is there behind these claims? Longevity expert Şebnem Ünlüişler weighs in.
Written by Maria Cohut, Ph.D. on February 19, 2026 — Fact checked by Jill Seladi-Schulman, Ph.D.
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