Talking Peptides, Ketones, and the Mitochondria: February Q&A Highlights with Dr. Yurth

About this video

This monthly Q&A ranges across mitochondria, nutrients, ketones, and peptide policy. Yurth argues many symptoms stem from micronutrient deficiencies and mitochondrial damage, using thiamine deficiency and Wernicke-Korsakoff syndrome to illustrate why intracellular nutrient testing matters in her practice. She discusses repairing mitochondria before stimulating them, ketones as an energy and anti-inflammatory tool around injury and sport, and hydrogen water as lower-priority and largely hype. On policy, she describes FDA efforts to move peptides to a less restricted category, warns research-grade sourcing will tighten, and highlights emerging ideas including AI-designed personalized peptides and an early brain-protective peptide with, she notes, no human testing yet. GLP-1 microdosing considerations are also discussed at a conceptual level.

Key takeaways

• Check micronutrient status before assuming fatigue or brain fog is untreatable aging
• Yurth sequences mitochondrial care as repair first, stimulation second
• Ketones are presented as addressing energy and inflammation, not just symptoms
• Expect peptide access to shift toward prescription and legitimate pharmacy routes
• Separate early, animal-only peptide ideas from approaches with human experience

Episode details: published February 28, 2026 · 1.3K views · 26:32 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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