Wide release date: October 1, 2025.
Episode Summary: Dr. Chris Masterjohn talks about the intricate relationships between nutrition, prescription drugs, and mitochondrial health, discussing how molecules like acetaminophen and SSRIs affect the body beyond their intended purposes, particularly impacting inflammation and energy metabolism. The discussion gets into the broader implications of serotonin outside the brain, the side effects of commonly used medications, and the importance of personalized nutritional strategies to optimize mitochondrial function.
About the guest: Chris Masterjohn, PhD holds a doctorate in nutritional sciences from the University of Connecticut and has served as an assistant professor at Brooklyn College, specializing in biochemistry and nutrition. He now operates independently, providing nutrition science education through his newsletter and social media, and is a co-founder of Mitome, a company focused on mitochondrial testing to optimize cellular energy production.
Special Offer: Mitome is a new mitochondrial health test kit. It measures the “activity level” of the major components of your mitochondrial electron transport chain. From now until Sept 30, up to ten people can use the code JIKOMES for $75 off.
Discussion Points:
Acetaminophen & Inflammation: Acetaminophen (Tylenol) may contribute to chronic low-grade inflammation by blocking both the initiation and resolution of inflammation, potentially linked to health issues like autism when used during pregnancy.
Serotonin’s Role Beyond the Brain: Approximately 95% of serotonin is found in the gut, regulating motility, with SSRIs causing side effects like nausea due to increased extracellular serotonin.
SSRIs & Mitochondrial Function: SSRIs disrupt serotonin uptake into cells, reducing mitochondrial melatonin production, which impairs the body’s ability to handle hypoxic stress and produce ATP efficiently.
Statins & Mitochondrial Impact: Statins, used to lower cholesterol, inhibit the mevalonate pathway, affecting not just cholesterol but also CoQ10 and vitamin K2, crucial for mitochondrial function, potentially leading to side effects like myopathy.
Mitochondrial Testing with Mitome: Masterjohn’s company, Mitome, uses cheek swab tests to measure mitochondrial respiratory chain activity, providing personalized dietary and lifestyle recommendations to optimize cellular energy production.
Nutrition & Mental Health: Masterjohn shares his personal experience of severe mental health issues on a vegan diet, which improved dramatically with a nutrient-dense diet rich in organ meats, highlighting individual nutritional needs.
Energy Metabolism’s Universal Role: Mitochondrial ATP production governs everything from daily energy levels to long-term health, with personalized testing helping identify and address specific bottlenecks.
Related content:
M&M 70: Mitochondria, Aging, Cellular Energy, Metabolism, Gray Hair Reversal & Brain-Body Communication | Martin Picard
*Not medical advice.
Full video version: [YouTube]
Support M&M if you find value in this content.
Episode transcript below.
Episode Chapters:
00:00:00 Intro
00:01:25 Guest Background & Overview
00:05:06 Tylenol, Inflammation & Autism
00:10:26 Chronic Inflammation & NSAIDs
00:15:56 Glutathione & Acetaminophen Effects
00:23:27 Serotonin Beyond the Brain
00:29:11 SSRI Side Effects & Limitations
00:35:51 Tryptophan to Melatonin Pathway
00:42:09 Serotonin, Melatonin & Hypoxia
00:49:20 Serotonin as Stress Coping Mechanism
00:57:17 Long-Term SSRI Effects & Withdrawal
01:07:18 SSRI Impact on Mitochondria
01:14:03 Sigma-1 Receptor & SSRI Variability
01:20:57 Statins & Mitochondrial Function
01:26:33 Mitome Mitochondrial Testing
01:35:17 Mitochondrial Assays & Energy Production
01:44:05 Interpreting Mitochondrial Test Results
01:50:30 Strategic Health Testing Approaches
01:56:49 Mitochondrial Health & Energy Metabolism
Full AI-generated transcript below. Beware of typos & mistranslations!
Listen to this episode with a 7-day free trial
Subscribe to Mind & Matter to listen to this post and get 7 days of free access to the full post archives.












