The Gut–Hormone Connection: Fiber, Microbiome & Fertility | Will Bulsiewicz, MD

As a Woman

Natalie Crawford

Medicine, Health & Fitness

4.8 • 1.1K Ratings

🗓️ 13 January 2026

⏱️ 53 minutes

🔗️ Recording | iTunes | RSS

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Summary

Dr. Natalie Crawford is joined by gastroenterologist Dr. Will Bulsiewicz to explain how gut health, inflammation, and hormones are connected—and what simple changes can support your energy, mood, and fertility. Key Topics: 1. The Gut–Hormone Connection - What the gut microbiome is and why it affects your whole body - How inflammation can quietly impact hormones, cycles, and fertility - Why symptoms like fatigue can be a sign of a deeper imbalance 2. Everyday Habits That Harm (or Help) Your Gut - How modern food, stress, and sleep patterns disrupt gut health - Why ultra-processed foods work against long-term wellness - Simple signs your gut may need more support 3. Food, Rhythm, and Daily Choices - The role of fiber, colorful plant foods, healthy fats, and fermented foods - How consistent routines around meals, sleep, and light support hormones - Practical ways to eat and live “gut-friendly” without a strict diet 4. Empowerment, Fertility, and Self-Advocacy - How a healthier gut can support hormones, fertility, and overall resilience - Why understanding your body helps you ask better questions in care settings - Focusing on what you can control rather than quick fixes Pre-order Dr. Crawford's debut book, The Fertility Formula, now! ⁠https://www.nataliecrawfordmd.com/book⁠ Follow Dr. Will Bulsiewicz on Instagram @theguthealthmd Order his book Plant Powered Plus Want to receive my weekly newsletter? Sign up at ⁠⁠⁠⁠nataliecrawfordmd.com/newsletter⁠⁠⁠⁠ to receive updates, Q&A, special content, and freebies If you haven’t already, please rate, review, and follow the podcast to be notified of new episodes every Tuesday. Plus, be sure to follow along on Instagram ⁠⁠⁠⁠@nataliecrawfordmd,⁠⁠⁠⁠ check out Natalie’s YouTube channel Natalie Crawford MD⁠⁠⁠⁠, and if you're interested in becoming a patient, check out ⁠⁠⁠⁠Fora Fertility. Join the Learn at Pinnacle app ⁠to earn FREE CE Credit for listening to this episode! This episode is brought to you by The Pinnacle Podcast Network! Learn more about Pinnacle at http://learnatpinnacle.com Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	Talk about how the gut is so important as that first line of defense and how connected it is to the immune system.
0:05.0	This opens up an entire conversation that as I was reading your book,
0:09.0	The Guts Best Friends is the Brain.
0:11.0	This is a widespread issue, unfortunately, our healthcare system.
0:14.0	We swapped books and we're reading them is that we both lead with this core central concept about how inflammation
0:20.0	is really this driving force and causing harm in our body.
0:24.4	It impacts your hormones, different hormonal health conditions, including fertility.
0:28.9	I couldn't believe this. Fiber is sexy.
0:33.3	The evidence is clear that building muscle supports our health in so many ways, but how to build muscle can be confusing.
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0:53.1	This contributes to better hormonal
0:54.8	health instead of potentially causing harm with over-exercise and endless cardio.
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1:30.0	Collection, made the way denim should feel.
	...

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