Your Gut 101 : How to Support It, What's Ruining It and How to Rebuild It After Antibiotics with Microbiologist Kiran Krishnan

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Oct 21, 2025

In this engaging conversation, microbiologist Kiran Krishnan shares his expertise on gut health. With over 15 years studying the microbiome, he explains how our gut is like a vibrant rainforest, crucial for digestion, mood, and immunity. Kiran explores the negative effects of antibiotics and stress, emphasizing the importance of restoring balance through simple habits like eating slowly and using probiotics. He highlights the gut-brain connection, revealing how it influences mental health. The discussion offers practical strategies for maintaining a healthy gut and overall well-being.

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INSIGHT

We Are A Microbial Rainforest

99.9% of microbes are benign or beneficial, not harmful.
Kiran Krishnan reframes humans as a holobiont: a walking rainforest relying on microbes for function.

ADVICE

Protect Your Microbiome Daily

Avoid a low-diversity, processed diet and prioritize fiber, polyphenols, and plant diversity.
Reduce unnecessary antibiotics and manage stress to protect your microbiome.

ADVICE

How To Protect Your Gut During Antibiotics

If you must take antibiotics, take proven probiotics and prebiotics and increase fiber for at least three times the antibiotic duration.
Separate probiotic intake by a few hours from each antibiotic dose to improve recovery.

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What if the key to healing your body—and your mind—starts in your gut?
Could anxiety, low energy, and inflammation all trace back to the same place?
And what if the secret to balance isn’t adding more, but restoring what’s already within you?

In this episode of A Really Good Cry, Radhi sits down with microbiologist and gut health expert Kiran Krishnan for a fascinating, eye-opening conversation on how our gut influences everything—from digestion and mood to immunity and mental clarity.

Kiran breaks down complex science into simple truths about how the body really works. He shares why our gut is like a living rainforest, how stress and antibiotics disrupt its balance, and what it actually takes to rebuild harmony within your system. Together, Radhi and Kiran explore how small daily habits—like eating slowly, adding bitters, and embracing probiotics—can shift not just your digestion, but your entire sense of well-being.

This isn’t just a conversation about gut health. It’s about reconnecting with the natural intelligence of your body and remembering that healing doesn’t have to be complicated—it just has to be conscious.

In this episode, you’ll learn:

Why 99.9% of microbes in your body are helping, not harming you
How stress directly impacts your digestion and mental health
What antibiotics really do to your microbiome—and how to recover
Why slow eating and digestive bitters can transform how you feel
The connection between gut health, mood, and better sleep
How to create a daily routine that supports balance from the inside out

If you’ve been feeling tired, foggy, or disconnected from your body, this episode is your reminder: healing doesn’t start in the mind—it starts in the gut.

Follow Kiran:
https://www.instagram.com/kiranbiome/
https://justthrivehealth.com/
https://www.instagram.com/justthrivehealth/

Follow Radhi:
https://www.instagram.com/radhidevlukia/
https://www.youtube.com/channel/UCxWe9A4kMf9V_AHOXkGhCzQ
https://www.facebook.com/radhidevlukia1/
https://www.tiktok.com/@radhidevlukia

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