If you have been dealing with bloating, irregular digestion, sensitivities, or feeling off after meals, this episode will help you understand what your gut is trying to communicate. In today's episode, I sat down with Dr. Rajan Karan, a gastrointestinal surgeon and gut-health researcher who makes complex digestive science feel simple and grounded.

We explore why digestion is more than isolated symptoms and how the microbiome functions as a living ecosystem that reflects your stress levels, routines, food diversity, and nervous system patterns. We also discuss the role of fiber, the oral microbiome, healthy transit time, and the small daily habits that genuinely improve gut resilience.

This conversation is a reminder that supporting digestion does not require extremes. It begins with accessible, sustainable practices that help your whole body feel more rooted.

Dr. Karan Rajan is a board-certified gastrointestinal surgeon and gut-health researcher known for translating complex physiology into practical guidance people can apply right away.

What's Discussed:

(00:00) How travel throws digestion, routine, and nervous system balance off
(03:12) The simple morning rituals that create predictable energy and gut rhythm
(05:08) When traditional medicine falls short and why prevention matters more
(10:42) The deeper reasons bloating and sensitivities return even with a “healthy” diet
(18:27) What fiber diversity really means and how it transforms your microbiome
(26:42) How different fibers feed different microbes along the colon
(33:15) The truth about stool tests and what they can actually reveal
(55:32) Why gut diversity influences cravings, metabolism, mood, and long-term vitality

Learn more about Mona Sharma:

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Learn more about Dr. Karan Rajan:

Website: https://www.drkaranrajan.com/
Instagram: @drkaranrajan 

Youtube: https://www.youtube.com/@DrKaran