In this episode, we detail Small Intestinal Fungal Overgrowth (SIFO), with a focus on fungal biofilm formation and its role in promoting microbial persistence and evasion of host immune responses. We discuss the phenotypic plasticity of Candida species, as well as biofilm matrices adherent to the intestinal mucosa. We further highlight common symptoms of SIFO as well as the effects of hypochlorhydria, reduced pancreatic enzyme and bile output, impaired motility, diminished commensal bacterial po...
Jul 11, 2025•15 min•Season 1Ep. 187
In this encore episode, we highlight vitamin D₃ in gastrointestinal health, with a focus on intestinal barrier function and the gut-immune axis. We discuss how vitamin D is metabolized into its active form, 1,25-dihydroxyvitamin D, and how 1,25-dihydroxyvitamin D can support the intestinal mucosa, while highlighting the intestinal epithelium and immune cells in the lamina propria. Through this, we further detail the role of regulatory T cells in supporting immune balance and modulating immune fu...
Jul 04, 2025•14 min•Season 1Ep. 186
In this encore episode, we detail the enteric nervous system and regulation of gastrointestinal motility. We discuss factors including dysautonomia, stress, microbial overgrowth, and more, with regards to potential effects upon gastrointestinal motility. We further detail symptoms of altered GI motility. Topics: 1. Introduction to Gastrointestinal Motility - Orchestrated contraction of smooth muscles that propel contents along the digestive tract. - Roles in mixing, absorption, and preventing ba...
Jun 27, 2025•15 min•Season 1Ep. 185
In this encore episode, we detail the cellular make-up of the gastric lining, highlighting hydrochloric acid (HCl) secretion and its role in digestion, micronutrient absorption, and microbial defense. We discuss potential pathophysiological consequences of hypochlorhydria, including impaired digestive signaling, bacterial overgrowth in the small intestine (SIBO), and more. Lastly, we detail upstream microbial control, focusing on the influence of the oral microbiome and oral dysbiosis. Topics: 1...
Jun 20, 2025•13 min•Season 1Ep. 184
In this encore episode, we detail the gut-immune axis, focusing on the protective mucus layer and the role of lactoferrin in intestinal health. We discuss endogenous secretions and how lactoferrin functions as an antimicrobial, immunomodulatory, and iron-regulating glycoprotein, influencing microbial balance and intestinal barrier integrity. Additionally, we highlight lactoferrin testing and levels. We finish by going through supplementation as a phenomenal tool. Topics: 1. The Intestinal Barrie...
Jun 13, 2025•13 min•Season 1Ep. 183
In this encore episode, we go through the pathophysiology of hydrogen sulfide (H₂S)-dominant small intestinal bacterial overgrowth (SIBO), focusing on its role in intestinal motility disruption, microbial dysbiosis, and epithelial barrier dysfunction. We detail the interplay between the enteric nervous system (ENS), interstitial cells of Cajal (ICCs), and migrating motor complex (MMC) in regulating small intestinal transit and how excess H₂S modulates smooth muscle activity, inflammatory signali...
Jun 06, 2025•14 min•Season 1Ep. 182
In this episode, we detail the oral microbiome and its relationship with the intestinal microbiome, detailing the oral-gut microbiota axis. We discuss the stepwise development of oral biofilm, the transition from plaque to dental calculus, and potential systemic impacts of oral dysbiosis, while highlighting intestinal health and focusing on Fusobacterium nucleatum. We then detail possible symptoms of oral dysbiosis as well as testing modalities. Topics: 1. Overview of the Oral Microbiome and the...
May 30, 2025•15 min•Season 1Ep. 181
In this encore episode, we detail the intestinal mycobiome and the mechanisms by which beneficial microbes aid in regulating opportunistic fungal species: Candida albicans. We discuss Candida overgrowth virulence and how disruptions in microbial balance, immune function, and epithelial integrity impact Candida's pathogenicity. Additionally, we discuss the role of mast cells in the lamina propria, their involvement in mucosal immunity, and how Mast Cell Activation Syndrome (MCAS) can be exacerbat...
May 23, 2025•14 min•Season 1Ep. 180
In this encore episode, we detail the pathophysiology of intestinal methanogen overgrowth (IMO), hydrogen-dominant small intestinal bacterial overgrowth (H₂-SIBO), and hydrogen sulfide-dominant SIBO (H₂S-SIBO), discussing their mechanistic interactions and overlap. We discuss methanogenic archaea, as well hydrogen sulfide- and hydrogen-producing microbes and their contributions to altered gastrointestinal motility, epithelial barrier function, and neuromuscular signaling. We detail host endogeno...
May 16, 2025•15 min•Season 1Ep. 179
In this episode, we highlight the stomach's role in vitamin B12 absorption and bioavailability, detailing the cellular composition of the gastric mucosa and further highlighting mucous cells, parietal cells, and chief cells. We also briefly discuss Helicobacter pylori and common symptoms, while detailing H. pylori's survival mechanisms in the acidic gastric environment as well as potential impacts on the gastric mucosal barrier. Topics: 1. Introduction - Overview of the stomach's role in B12 abs...
May 09, 2025•13 min•Season 1Ep. 178
In this episode, we highlight vitamin D₃ in gastrointestinal health, with a focus on intestinal barrier function and the gut-immune axis. We discuss how vitamin D is metabolized into its active form, 1,25-dihydroxyvitamin D, and how 1,25-dihydroxyvitamin D can support the intestinal mucosa, while highlighting the intestinal epithelium and immune cells in the lamina propria. Through this, we further detail the role of regulatory T cells in supporting immune balance and modulating immune function....
May 02, 2025•14 min•Season 1Ep. 177
In this episode, we discuss the gut-immune axis and Small Intestinal Fungal Overgrowth (SIFO), with a mechanistic focus on immune activation and epithelial barrier disruption. We detail contributing factors to and symptoms of SIFO. We further discuss the anatomical positioning and immunological functions of mast cells within the lamina propria, highlighting mast cell activation syndrome, while detailing how SIFO and SIBO can serve as upstream triggers for mast cell activation. Topics: 1. The Gut...
Apr 25, 2025•14 min•Season 1Ep. 176
In this episode, we detail the role of vitamin B1 (thiamine) in supporting gastrointestinal function, highlighting intestinal motility through vitamin B1's involvement in acetyl-CoA and acetylcholine synthesis. We discuss thiamine insufficiency as well as how small intestinal bacterial overgrowth (SIBO) can further affect thiamine availability. We further detail host defense mechanisms—including gastric acid, pancreatic enzymes, and gastrointestinal motility—that work in concert to regulate micr...
Apr 18, 2025•16 min•Season 1Ep. 175
In this encore episode, we discuss the role of histamine within the gastrointestinal tract, detailing its regulation of gastric acid secretion and impact on intestinal motility. We examine how histamine-producing enterochromaffin-like (ECL) cells, mast cells, and gut microbiota contribute to histaminergic signaling, and how enzymatic degradation via diamine oxidase (DAO) maintains homeostasis. Additionally, we discuss histamine intolerance, highlighting the impacts of dysbiosis (as well as SIBO ...
Apr 11, 2025•16 min•Season 1Ep. 174
In today's episode, we detail the enteric nervous system and regulation of gastrointestinal motility. We discuss factors including dysautonomia, stress, microbial overgrowth, and more, with regards to potential effects upon gastrointestinal motility. We further detail symptoms of altered GI motility. Topics: 1. Introduction to Gastrointestinal Motility - Orchestrated contraction of smooth muscles that propel contents along the digestive tract. - Roles in mixing, absorption, and preventing bacter...
Apr 04, 2025•15 min•Season 1Ep. 173
In this episode, we detail the cellular make-up of the gastric lining, highlighting hydrochloric acid (HCl) secretion and its role in digestion, micronutrient absorption, and microbial defense. We discuss potential pathophysiological consequences of hypochlorhydria, including impaired digestive signaling, bacterial overgrowth in the small intestine (SIBO), and more. Lastly, we detail upstream microbial control, focusing on the influence of the oral microbiome and oral dysbiosis. Topics: 1. Intro...
Mar 28, 2025•15 min•Season 1Ep. 172
We are honored to be joined by Forrest Smith, the CEO and Founder of Kineon. Forrest has a 20-year history of building successful startups in tech hardware. He is passionate about health, wellness, and advancing technology to help others, and he has spent his adult life building remarkable products around innovative supply chain. Aside from his founder position in multiple companies, Forrest has held several positions, from Director of Asian Operations for a Fortune 500 company to Director of Bu...
Mar 26, 2025•55 min•Season 1Ep. 171
In this episode, we detail the intestinal mycobiome and the mechanisms by which beneficial microbes aid in regulating opportunistic fungal species: Candida albicans. We discuss Candida overgrowth virulence and how disruptions in microbial balance, immune function, and epithelial integrity impact Candida's pathogenicity. Additionally, we discuss the role of mast cells in the lamina propria, their involvement in mucosal immunity, and how Mast Cell Activation Syndrome (MCAS) can be exacerbated by f...
Mar 21, 2025•16 min•Season 1Ep. 170
In this episode, we detail the role of immunoglobulins in gut-immune function, examining their involvement in mucosal defense, microbial regulation, and immune homeostasis within the intestines. We discuss the mechanisms of antibody production, highlighting how secretory IgA (sIgA) contributes to intestinal barrier integrity and pathogen neutralization. We also detail low secretory immunoglobulin A levels and Candida overgrowth. Lastly, we go through tools to support the gut-immune axis includin...
Mar 14, 2025•15 min•Season 1Ep. 169
In this episode, we detail the pathophysiology of intestinal methanogen overgrowth (IMO), hydrogen-dominant small intestinal bacterial overgrowth (H₂-SIBO), and hydrogen sulfide-dominant SIBO (H₂S-SIBO), discussing their mechanistic interactions and overlap. We discuss methanogenic archaea, as well hydrogen sulfide- and hydrogen-producing microbes and their contributions to altered gastrointestinal motility, epithelial barrier function, and neuromuscular signaling. We detail host endogenous defe...
Mar 07, 2025•19 min•Season 1Ep. 168
In this episode, we detail the gut-immune axis, focusing on the protective mucus layer, antimicrobial peptides, and the role of lactoferrin in intestinal health. We discuss endogenous secretions and how lactoferrin functions as an antimicrobial, immunomodulatory, and iron-regulating glycoprotein, influencing microbial balance and intestinal barrier integrity. Additionally, we highlight lactoferrin testing and levels. We finish by going through supplementation as a phenomenal tool. Topics: 1. The...
Feb 28, 2025•16 min•Season 1Ep. 167
In this episode, we detail the bidirectional relationship between the HPA axis and the intestinal barrier, illustrating how HPA axis dysfunction and cortisol dysregulation can impact intestinal permeability. We further discuss how intestinal dysbiosis can contribute to HPA axis overstimulation. Lastly, we detail some of the roles of short-chain fatty acids (SCFAs) and secretory IgA (sIgA) in this bidirectional relationship. Topics: 1. Overview of the HPA Axis and Gut Bidirectional Relationship -...
Feb 21, 2025•19 min•Season 1Ep. 166
In this episode, we go through the pathophysiology of hydrogen sulfide (H₂S)-dominant small intestinal bacterial overgrowth (SIBO), focusing on its role in intestinal motility disruption, microbial dysbiosis, and epithelial barrier dysfunction. We detail the interplay between the enteric nervous system (ENS), interstitial cells of Cajal (ICCs), and migrating motor complex (MMC) in regulating small intestinal transit and how excess H₂S modulates smooth muscle activity, inflammatory signaling, and...
Feb 14, 2025•18 min•Season 1Ep. 165
In this episode, we discuss the relationship between the intestinal mucus layer and secretory immunoglobulin A (sIgA), highlighting both as key components of the gut's first line of defense against pathogens, toxins, and environmental stressors. We detail how dysbiosis and microbial overgrowths can impact sIgA levels and can disrupt mucus integrity and function, contributing to increased intestinal permeability and inflammation. We then examine several additional factors influencing sIgA product...
Feb 07, 2025•17 min•Season 1Ep. 164
In this episode, we go through the gut-immune axis and mycobiome, focusing on the mechanisms underlying intestinal fungal overgrowth. We highlight the roles of the intestinal mucus layer, intestinal epithelial cells, lamina propria, and secretory immunoglobulin A (sIgA) in maintaining homeostasis and defending against fungal overgrowth. We also detail the pathogenic transition of Candida from its commensal yeast form to an invasive hyphal state, as well as the resulting disruptions to immune fun...
Jan 31, 2025•19 min•Season 1Ep. 163
We are honored to be joined today by Chris Soppet. Chris is the founder of Spectrum Sciences, a health and wellness brand with the vision of bringing the healing power of vitamin B12 to the greatest number of folks out there. He received his inspiration from his son, who recovered from autism in large part due to the remarkable power of vitamin B12. Chris shares this hope through a very tangible means – The Vitamin B12 Protocol. After using various other B12 products on the market, he was disapp...
Jan 29, 2025•56 min•Season 1Ep. 162
In this episode, we explore some of the neural and cellular mechanisms underlying gastrointestinal motility, emphasizing the roles of the enteric nervous system (ENS) and interstitial cells of Cajal (ICCs) in coordinating smooth muscle contractions throughout the digestive tract. We detail disruptions in motility seen in dysautonomia, intestinal methanogen overgrowth (IMO), and small intestinal bacterial overgrowth (SIBO). And, we finish with a brief discussion on the impacts of low stomach acid...
Jan 24, 2025•18 min•Season 1Ep. 161
In this episode, we detail the gut’s intricate immune defenses, emphasizing the role of mast cells in inflammation and immune signaling. We extend this conversation to Mast Cell Activation Syndrome briefly going through potential triggers, tests, and symptoms. Finally, we examine the bidirectional relationship between MCAS and Small Intestinal Bacterial Overgrowth (SIBO), illustrating how mast cell mediators and microbial byproducts can drive a cycle of chronic inflammation and increased intesti...
Jan 17, 2025•17 min•Season 1Ep. 160
In this episode, we go through the role of histamine within the gastrointestinal tract, exploring its regulation of gastric acid secretion and impact on intestinal motility. We examine how histamine-producing enterochromaffin-like (ECL) cells, mast cells, and gut microbiota contribute to histaminergic signaling, and how enzymatic degradation via diamine oxidase (DAO) maintains homeostasis. Additionally, we discuss histamine intolerance, highlighting the impacts of dysbiosis (as well as SIBO or s...
Jan 10, 2025•16 min•Season 1Ep. 159
In this episode, we discuss the anatomy and physiology of the stomach and its unique epithelial structure. We dive into the pathophysiological implications of conditions such as Helicobacter pylori infection and hypochlorhydria, examining how they disrupt gastric function and microbial balance. Finally, we connect these concepts to the small intestine, discussing possible downstream effects of altered gastric acid secretion, focusing on microbial colonization and contributions to broader gastroi...
Jan 03, 2025•18 min•Season 1Ep. 158
