751: Bloating, Brain Fog & Hormone Chaos? Your Gut May Be the Root Cause with Dr. Cassie Smith

“What if your bloating, fatigue, brain fog, anxiety, stubborn weight gain, and hormone symptoms are actually starting in your gut?” In this episode, Dr. Mariza sits down with Dr. Cassie Smith — dual board-certified endocrinologist, founder of Modern Endocrine, and author of Fix Your Gut, Fix Your Hormones — to unpack the powerful connection between gut health, hormone balance, stress, metabolism, inflammation, and reproductive health. Together, they dive into how chronic stress, poor gut health, blood sugar dysregulation, inflammation, and lifestyle overload silently impact everything from cortisol and insulin to estrogen, progesterone, thyroid function, and fertility. Dr. Cassie explains why so many women are told their labs are “normal” while still feeling exhausted, bloated, anxious, inflamed, and disconnected from their bodies — and why gut dysfunction is often the missing piece conventional medicine overlooks. They also explore the growing metabolic and hormonal crisis happening in younger women, the connection between PCOS, insulin resistance, gut dysfunction, and birth control, and why many women are struggling to restore healthy cycles and fertility later in life. This conversation is a powerful reminder that hormones do not work in isolation. Your gut, nervous system, metabolism, sleep, stress resilience, and hormones are all deeply interconnected. If you’ve been feeling like your body is trying to tell you something but nobody has connected the dots yet, this episode will help you understand where healing truly begins. DR. CASSIE SMITH Dr. Cassie Smith is a dual board-certified endocrinologist and the founder of Modern Endocrine. After becoming frustrated with the limitations of conventional medicine, she built a practice focused on uncovering the root causes behind hormone dysfunction, metabolic issues, fertility struggles, and gut-related symptoms. She is also the author of the book Fix Your Gut, Fix Your Hormones. IN THIS EPISODE Why chronic stress has such a powerful impact on gut health and hormones How gut dysfunction contributes to fatigue, brain fog, bloating, anxiety, and weight resistance The connection between estrogen decline, microbiome diversity, and inflammation Why insulin resistance and metabolic dysfunction are rising in younger women The hidden relationship between PCOS, gut health, cortisol, and fertility Why birth control is often used as a Band-Aid instead of addressing root causes The foundational lifestyle habits that support gut and hormone healing Why slowing down, resting, and reducing nervous system overload matters for recovery QUOTES “Your hormones are doing the best they can in the environment you give them.” “It doesn’t matter how many supplements or hormones we throw at you if the foundations aren’t in place.” “Your gut is where all healing begins.” “Your body cannot heal in survival mode.” RESOURCES MENTIONED Get your “Fix Your Gut, Fix Your Hormones” Book by Dr. Cassie Smith https://guthormonefix.com/ ⁠Order my newest book: The Perimenopause Revolution https://peri-revolution.com/ Modern Endocrine Website Modern Endocrine Instagram Modern Endocrine Facebook Modern Endocrine Tiktok Modern Endocrine Youtube Hormones, Metabolism and You PodcastThe Menopause Gut Book by Cynthia Thurlow RELATED EPISODES  741: Estrogen, Gut Health, Mitochondria, and Cardiovascular Health: What Changes In Perimenopause with Dr. Siobhan Mitchel 743: Why Your Heart Risk Changes in Menopause (And What You Can Do About It) with Dr. Jayne Morgan 738: The Hidden Link Between Inflammation, Hormones & Fertility with Dr. Natalie Crawford  740: Why You’re Bloated, Gaining Weight & Feeling Off in Menopause (It Starts in Your Gut) with Cynthia Thurlow