This Molecule Controls Your Metabolism, Fertility & Brain! l Dr. Andrew Salzman l Ep # 446

About this video

Dr. Andrew Salzman, who says he has researched NAD since the late 1980s, presents NAD as a master regulatory molecule at the center of energy production, repair, and signaling. He explains CD38 as a major consumer that drains NAD as inflammation and age rise, and connects NAD depletion to gut-barrier failure: drawing on his early research, he argues that when gut cells lose energy, the tight junctions between them loosen, letting bacterial products through and triggering a self-reinforcing cycle of inflammation and further leakage. Diet, fiber, and butyrate-producing microbes are discussed as barrier supports. Salzman also brings a drug-development lens — skepticism, safety rigor, and the need for tests that personalize NAD strategies instead of guesswork. The episode carries paid promotions for supplement vendors.

Key takeaways

• Salzman frames NAD decline as both a cause and a consequence of inflammation, with CD38 cast as the chief drain.
• The gut barrier is energy-dependent in his account: lose cellular energy and the seals between gut cells fail.
• Leaky gut is described as a positive feedback loop — leakage drives inflammation, which opens the barrier further.
• Feeding butyrate-producing microbes with fermentable fiber is presented as a practical barrier-support strategy.
• He cautions that NAD interventions are currently unpersonalized; without measurement, users are, in his words, walking blind.

Episode details: published June 12, 2026 · 1.6K views · 1:11:44 long. Summary written by Self Growth Videos from the episode itself. The longevity and peptide concepts described are Nathalie Niddam’s or her guests’, presented for education — not medical advice. Consult a qualified professional before changing your own health practices. Disclosure: Niddam promotes peptide products through affiliate arrangements with peptide vendors, a commercial conflict; Self Growth Videos reproduces none of her codes.

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