In this episode of the Flex Diet Podcast, I sit down with Dr. Scott Sherr to take a deep dive into methylene blue, mitochondrial function, and where the truth lies between online hype and fear. We talk through how methylene blue acts as a redox cycler in the mitochondria, how dosing differs for mitochondrial support versus antimicrobial use, and why high doses or poorly labeled liquid droppers can cause problems.  Dr. Sherr also shares how he’s used methylene blue with athletes for recovery and endurance, including timing, half-life, and practical ranges he sees most often. We cover how mitochondrial health connects to energy, mood, focus, stress physiology, and recovery, plus resources from Transcriptions and the Health Optimization Medicine and Practice (HOMe/HOPe) framework. Sponsors: TROScriptions TX: https://troscriptions.com/?rfsn=9054607.066ddde&utm_source=refersion&utm_medium=affiliate&utm_campaign=9054607.066ddde CODE: DRMIKE Daily Fitness Insider Newsletter: https://flex-diet.kit.com/bfa1510fa8 Coming up: ISSN 2026: https://www.sportsnutritionsociety.org/ Available now: Grab a copy of the Triphasic Training II book I co-wrote with Cal Deitz here. Episode Chapters: 03:11 Why Methylene Blue Now 04:29 Scott Cher Origin Story 05:05 Health Optimization Framework 07:08 Transcriptions and Safe Sourcing 08:46 Natural vs Synthetic Debate 11:49 How Methylene Blue Works 17:42 Who Benefits Most 22:13 Athletic Performance and Recovery 29:41 Dosing Timing and MAOI Effects 32:13 Mitochondria and Fertility 32:28 Energy Anxiety and Brain Fog 33:13 Depression Beyond Serotonin 35:30 Stress Pathways and Cell Danger 37:00 ADHD or Sympathetic Overdrive 38:50 Recovery Metrics and Downregulation 42:21 GABA Support and BBB Clues 47:50 Building Mitochondrial Capacity First 51:35 Methylene Blue Dosing Guide 57:54 Where to Learn More 01:00:24 Podcast Wrap and Disclaimer  Flex Diet Podcasts you may enjoy: Episode 344: Metabolic Adaptations, Lactate, and Training Smarter with Dr. Phil Batterson YouTube: https://www.youtube.com/watch?v=PPZyO1nxSPA Episode 320: Unlocking Mitochondrial Secrets with Dr. Hemal Patel YouTube: https://www.youtube.com/watch?v=lQGXtZjJtQw Connect with Dr Sherr: Instagram: https://www.instagram.com/drscottsherr/ Website: https://drscottsherr.com/ YouTube: https://www.youtube.com/@drscottsherr Get In Touch with Dr Mike: Instagram: Drmiketnelson YouTube: @flexdietcert Email: Miketnelson.com/contact-us