In this episode of Hormones and Hope Podcast, Dr. Chhaya is joined by Dr. Katrina Coulter, infectious disease physician and microbiome educator, to explore why our gut is one of the most powerful systems in our body. It’s not just about digestion—your gut is shaping your hormones, immune system, mood, and even how you respond to medications.
From the overuse of antibiotics to the way our food is grown, Dr. Coulter explains how the loss of microbial diversity is at the root of many modern issues: hormone imbalances, metabolic shifts, poor immunity, and even emotional health. But instead of fear, she offers a grounded, hopeful message: our gut can recover and the tools are simpler than we think.
If you’ve ever wondered how to rebuild your gut after antibiotics, whether probiotics are really worth the hype, or what to eat to feel better over time—this episode is for you.
Key Takeaways:
- Your gut is more than just a digestive organ—it’s the largest endocrine organ, influencing hormones, immunity, mental health, and metabolism.
- The microbiome is shaped by everything from antibiotics to farming practices to how much time you spend outdoors.
- Modern agriculture and ultra-processed foods are depleting both soil and gut microbial diversity.
- Most people get only 5–10g of fiber daily, but we need 25–35g to fuel gut bacteria and maintain health.
- Prebiotics (fiber) are more essential than probiotics. You can’t just take a pill—real food is key.
About Dr. Coulter
Dr. Katrina Coulter is a physician, mom, wife, regenerative rancher, content creator, and public health educator. She is board certified in Internal Medicine and Infectious Diseases. She completed her medical school, residency, and fellowship training all at the University of Arkansas for Medical Sciences in Little Rock. Dr. Coulter is in private practice in Colorado, where she treats a wide spectrum of complex infectious conditions in adults in both the hospital and clinic setting. Dr. Coulter strives to be the premier authority on microbiome health and its relationship to infectious disease occurrence, treatment, and prevention. She focuses on restoring health and well-being by promoting balance in both our internal and external ecosystems.
Dr. Coulter enjoys spending her free time in nature with her husband and two children, while operating their sustainable farm and ranch in the Rocky Mountains.
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Disclaimer: This podcast is for educational, informational, and entertainment purposes only. It’s not a substitute for professional medical advice, diagnosis, or treatment.
