Ep.16 - NAD+ and its Importance To Overall Cellular Health

About this video

In this long-form episode, Seeds explains why NAD+ is central to his cellular medicine framework while arguing that supplementing it directly is a misconception. He describes NAD+ as both a redox cofactor, recycled rather than consumed when it supports mitochondrial function and antioxidant defenses, and a substrate used by processes such as sirtuin activation, DNA repair, and the CD38 pathway in immune cells. His central claim is that artificially flooding a cell with NAD+ can backfire: he argues it can create an over-reduced state, increase reactive oxygen species, and blunt the energy-stress signals, such as AMPK, that drive mitochondrial biogenesis, autophagy, and adaptation to exercise or fasting. He also contends the Krebs cycle runs on substrate oxidation, not on supplied NAD+. The episode closes with a warning against influencer-driven shortcuts.

Key takeaways

• NAD+ works both as a recycled cofactor and as a consumed substrate, and the distinction matters
• Seeds argues more NAD+ is not automatically better; cellular balance and ratios drive the outcome
• Blunting energy-stress signaling can, in his account, undermine the adaptations people are trying to gain
• Mechanism-first reasoning is his test for whether a popular longevity intervention makes sense
• Beware simple supplement narratives amplified by social media

Episode details: published June 30, 2026 · 67 views · 46:22 long. Summary written by Self Growth Videos from the episode itself. The peptide and cellular-medicine concepts described are Dr. William Seeds’s, presented for education — not medical advice. Consult a qualified professional before changing your own health practices. Disclosure: the SSRP Institute sells clinician certification in peptide therapy.

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