NAD Is Not Something You Just Dump Into the Body
About this video
In this short clip, presented with non-English captions, Yurth warns against simply flooding the body with NAD. She argues low NAD may reflect greater consumption rather than lower production, so adding more without understanding why it is low could, in her view, disrupt other processes and cause more harm than benefit. She extends the caution to follistatin gene therapy, arguing that blocking myostatin could produce larger but less functional muscle and that gene therapies can be difficult or impossible to reverse. She criticizes patients spending heavily on such therapies without basic-science grounding and urges returning to underlying mechanisms before adopting fashionable, expensive interventions.
Key takeaways
- Ask why a marker is low before replacing it, since Yurth argues consumption and production call for different responses
- Treat irreversible interventions with extra skepticism, as Yurth warns gene therapy decisions may not be undoable
- Distinguish bigger muscle from functional muscle when evaluating myostatin-related claims, following Yurth’s critique
- Check the basic science before paying for an expensive therapy, as Yurth urges mechanism before marketing
Episode details: published July 17, 2026 · 523 views · 1:08 long. Summary written by Self Growth Videos from the episode itself. The longevity and peptide concepts described are Dr. Elizabeth Yurth’s, presented for education — not medical advice. Consult a qualified professional before changing your own health practices. Disclosure: Dr. Yurth is co-founder and Chief Medical Officer of the Boulder Longevity Institute, a clinic, and BLI Academy sells clinician education.
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