The Autoimmune Doc Podcast w/ Dr. Taylor Krick
The Autoimmune Doc Podcast is hosted by Dr. Taylor Krick, a functional medicine practitioner (and sufferer of autoimmune disease himself) who specializes in educating and supporting those dealing with autoimmune diseases or symptoms. Dr. Taylor's focus is on explaining the underlying mechanisms of autoimmunity, while also giving clinical pointers to help you manage your own case through labs, supplements, and lifestyle strategies. For more information visit www.autoimmunedocpodcast.com
The Autoimmune Doc Podcast w/ Dr. Taylor Krick
089 - The Gut-Brain Connection Explained - How Gut Inflammation, the Vagus Nerve, and Psychobiotics Affect Your Nervous System
Use Left/Right to seek, Home/End to jump to start or end. Hold shift to jump forward or backward.
Can poor gut health contribute to anxiety, depression, brain fog, OCD, insomnia, neurological symptoms, or an overactive stress response?
SHORT ANSWER - - YES!!!!
In this episode of The Autoimmune Doc Podcast, Dr. Taylor explains the gut-brain connection, the enteric nervous system, the vagus nerve, psychobiotics, and why a “gut on fire” can lead to a “brain on fire.”
The vagus nerve is often described as the communication highway connecting the digestive system and the brain—but stimulating the vagus nerve is only one part of the picture. Your gut microbiome, intestinal lining, immune system, mast cells, hormones, bacterial metabolites, and neurotransmitters are continually sending signals along the gut-brain axis.
Dr. Krick breaks down how gut dysbiosis, leaky gut, infections, bacterial or yeast overgrowth, toxins, stress, poor sleep, inflammatory foods, and other triggers may contribute to enteric neuroinflammation and changes in brain function. He also explains how gut bacteria influence important neurotransmitters such as GABA, serotonin, dopamine, and acetylcholine.
In this episode, you’ll discover:
• What the enteric nervous system is and why it is called the “second brain”
• How the microbiome communicates with the nervous system
• Why vagus-nerve stimulation may help—but may not address the root problem
• How gut inflammation may influence anxiety, depression, brain fog, OCD, sleep, mood, and stress resilience
• The connection between intestinal permeability, leaky gut, and neuroinflammation
• How mast cells and histamine interact with enteric nerves
• What psychobiotics are and how specific probiotics may influence mental health
• How gut bacteria help regulate GABA, serotonin, and other neurotransmitters
• The roles of prebiotics, probiotics, postbiotics, fiber, and short-chain fatty acids such as butyrate
• Why a standard low-dose probiotic may not be enough to change the microbiome
• Why some people need to “pull the weeds” before they “plant the seeds”
• How functional stool testing and organic acids testing may guide individualized gut support
• Why both symptom improvement and objective laboratory changes matter
Dr. Taylor also discusses emerging research examining the gut’s possible role in neurodegenerative conditions, including Parkinson’s disease and Alzheimer’s disease. Rather than treating the brain as though it functions in isolation, this episode explores how closely neurological, immune, hormonal, and digestive mechanisms are connected.