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Dr. Perlmutter’s groundbreaking new book, Brain Defenders, is now available for pre-order. Discover how to protect your brain and future health - reserve your copy today at https://www.braindefenders.com.

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On this episode of The Empowering Neurologist, I sit down with one of the most influential voices in modern nutrition and women’s health, Rachel Swanson, MS, RD, LDN. Her new book, Trying! A Science-Based Plan to Optimize Your Fertility, is poised to reshape how we think about fertility, moving it out of the narrow confines of hormone-focused conversations and into the broader landscape of systems biology, metabolism, environmental exposure, and cellular health.

Swanson’s work begins with a powerful premise: fertility is not a mystery, and it’s certainly not something women should feel powerless about. Instead, she argues, fertility is a measurable, improvable expression of whole-body health. And her book provides the first integrated blueprint to understand and support that health.

The conversation starts with the microbiome, which Swanson calls the “mission control headquarters” of fertility. Who knew that our gut bacteria were playing an important role in determining fertility? Drawing from her book, she describes how the gut, vaginal, and even oral microbiomes create the biochemical environment that influences hormone balance, inflammation, implantation, egg quality, and partner sperm health.

What makes this book, and this podcast episode, so compelling and empowering is Rachel’s rare combination of scientific precision and heartfelt dedication to women’s autonomy. She refuses to oversimplify fertility into quick fixes or fad-driven advice. Instead, she offers deeply practical strategies rooted in peer-reviewed research and years of high-level clinical practice.

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00:00 Intro - Rachel Swanson04:38 Fertility as Whole-Body Health11:37 Metabolic Health Comes Too Late18:48 Ad - EVY21:17 The Microbiome as a Foundation of Health27:28 PCOS Is a Metabolic Disease, Not Just Hormonal35:15 Ad - Fresh Pressed Olive Oil37:07 Menstrual Products and the Vaginal Microbiome40:41 Inflammation and Metabolism Drive Fertility49:06 Ad - 3x4 Genetics50:26 Personalized Fertility Over One-Size-Fits-All56:16 Closing Thoughts

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Rachel Swanson, MS, RD, LDN, is a registered dietitian and one of America’s most sought-after nutritionists, known for optimizing human performance through science-backed, personalized care. Her clients include celebrities, professional athletes, and Fortune 500 executives who trust her expertise in concierge medicine and private practice.

Rachel is a highly principled, intellectually rigorous, and passionately empowering expert, whose communication and sentiment are consistently driven by a profound conviction in her book's unique, holistic framework as the transformative solution to outdated and fragmented fertility advice, reflecting a deep commitment to women's health and autonomy.

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