The Gut Health Dialogues
I'm Alyssa Simpson, a Registered Dietitian specializing in digestive health. This podcast is for people with IBS, SIBO, and other stomach issues to learn how to calm their symptoms and improve their gut health using natural solutions like diet, supplements, and lifestyle changes.
Episodes
In this episode, Alyssa Simpson breaks down one of the most confusing gut health struggles: why nourishing foods like vegetables, lentils, or garlic can suddenly trigger bloating, gas, cramping, or flare-ups.
Alyssa explains the surprising reasons behind this — from gut inflammation and bacterial overgrowth (like SIBO) to histamine intolerance, food sensitivities, and sluggish digestion. More importantly, she shares p...
In this episode of The Gut Health Dialogues, Alyssa Simpson sits down with Dr. Diana Driscoll—optometrist, researcher, and author of The Driscoll Theory—to uncover connections between gut health, vagus nerve dysfunction, chronic inflammation, and conditions like POTS, SIBO, long COVID, and Ehlers-Danlos Syndrome.
Dr. Driscoll shares her journey from being incapacitated by illness to discovering root causes medicine oft...
If you’ve tried more fiber, magnesium, MiraLAX, and water—but you’re still backed up—this episode is for you. Alyssa dives deep into constipation, busts myths, and shows what really moves the needle when your gut is sluggish. She covers why “healthy” foods can sometimes make things worse, what your gut actually needs to start moving, and small shifts in timing, hydration, and food pairings that can bring real relief.
...
Histamine intolerance might feel like the final answer, but what if it’s really just the tip of the iceberg?
In this episode, Alyssa sits down with Jennifer Fugo, MS, LDN, CNS — a clinical nutritionist and host of the Healthy Skin Show — to uncover the real root causes behind histamine intolerance and chronic skin issues.
They uncover why antihistamines don’t always help, why low histamine diets often fail long-term, a...
If you’ve ever wondered:
- Why does my SIBO keep coming back?
- How do I know if my gut is really healing?
- Where should I start without wasting time and money?
…this conversation has the answers you’ve been searching for.
In this episode, Alyssa reveals the exact approach she would take if she were diagnosed with SIBO today. But here’s the catch—it’s probably not what you’ve been told by the internet or eve...
In this episode, Alyssa unpacks one of the most confusing questions people with SIBO face: What can I actually eat?
If you’ve ever been stuck on chicken and rice because everything else feels like a trigger, this conversation will feel familiar. Alyssa explains why overly restrictive SIBO diets may bring short-term relief but can also backfire—slowing down healing, weakening motility, and leaving your gut more fragile ...
If your gut feels unpredictable — flaring up at random foods, reacting to stress, or leaving you anxious about your next meal — your digestion is NOT broken. Your gut just needs retraining.
In this episode, Alyssa explains how you can “teach” your gut to become more tolerant, flexible, and resilient — and why waiting for the “perfect time” to start often makes things worse.
You’ll discover:
✅ Why avoidanc...
Eating five “safe” foods and tracking symptoms isn’t healing your gut – it’s managing your symptoms.
If you’re eating the same few foods, timing meals, keeping food journals, planning outings around bathrooms, or leaning on supplements just to get through a meal… you’re not healing. You’re surviving. And while that may work short-term, it keeps you stuck in “management mode” — which makes true healing feel further and...
In this episode, Alyssa sits down with her client, Shelby, who was struggling for years with severe gut issues from chronic constipation/diarrhea cycles to unexplained hives and the frustration of living on a low FODMAP, low histamine diet, while also being vegetarian. After discovering she had SIBO and working through a targeted gut healing protocol with Alyssa, Shelby’s symptoms dramatically improved. But what reall...
In this powerful episode, Alyssa dives deep into a topic that frustrates so many people trying to “eat clean” but still feeling bloated, puffy, and reactive—inflammation.
If you've ever wondered why you’re reacting to foods that used to be fine, or why “healthy” choices leave you feeling worse, this episode will change the way you think about food and your gut.
Alyssa breaks down what inflammation really is, how it...
In this episode, host Alyssa Simpson is joined by GI psychologist and gut-brain expert Dr. Navidi to explore one of the most overlooked drivers of chronic digestive issues: the gut-brain connection.
They dive into a category of conditions known as Disorders of Gut-Brain Interaction (DGBIs)—which include IBS, bloating, reflux, functional constipation, nausea, and more. Millions live with these diagnoses without realizin...
In this episode, Alyssa dives deep into a topic that often leaves those with gut health issues scratching their heads: Can you enjoy alcohol without compromising your gut health? This episode is packed with actionable insights for anyone navigating sensitive digestion, bloating, or microbiome imbalances. If you’ve ever wondered whether that cocktail is worth the aftermath, this episode is for you.
Alyssa shares an hone...
In this episode, Alyssa chats with Molly Pelletier, a board-certified Dietitian and founder of FLORA Nutrition. Molly shares her journey from battling acid reflux and IBS to becoming a global leader in digestive health. She combines cutting-edge GI science with integrative modalities to provide effective solutions for her clients. From the significance of fiber diversity to managing stress and motility, this episode s...
In this episode, Alyssa dives deep into lactose intolerance, a common digestive challenge. Learn what lactose intolerance really means, how to identify it, and ways to enjoy a varied and nutritious diet without discomfort. She explores alternative sources of calcium, vitamin D, and protein for those avoiding dairy, plus practical tips for grocery shopping, dining out, and traveling dairy-free. Alyssa also discusses un...
Eczema is more than skin deep, and in this episode, Alyssa Simpson is joined by expert dietitian Julia Chien to uncover the root causes of this chronic condition. Julia shares her personal journey with eczema and Topical Steroid Withdrawal (TSW), offering actionable tips to heal from within.
Alyssa and Julia break down the common misconceptions about eczema, such as the overdiagnosis of histamine intolerance, and explo...
In this episode, Alyssa dives deep into the journey of moving beyond food fear to embrace true food freedom while supporting sustainable gut health. This empowering discussion is perfect for anyone who’s struggled with restrictive diets, food reactivity, or chronic gut health challenges. With practical advice, actionable strategies, and a wealth of knowledge, this episode offers a roadmap to break free from restrictiv...
In this episode, Alyssa Simpson a Gut Health Dietitian and Food-first digestive health coach, dives into how to make greens your gut's best friend. Instead of focusing on what to eliminate from your diet, Alyssa emphasizes how to include greens in ways that support gut health without discomfort. Whether you're navigating IBS, SIBO, or histamine intolerance, this episode is packed with practical tips to help ...
In this episode, Alyssa dives deep into the often-overlooked but crucial signals your gut sends through undigested food in your stool. Whether you’ve noticed corn kernels or spinach leaves making an encore in your toilet, this episode explains what’s normal, what’s not, and what your digestive system might be trying to tell you. From understanding the role of stomach acid and digestive enzymes to learning how chewing ...
Cooking oils play a huge role in your gut health, inflammation, and overall well-being, but not all oils are created equal! In this episode, Alyssa breaks down everything you need to know about non-seed oils like avocado oil, olive oil, and ghee, explaining how they compare to traditional seed oils.
Learn how omega-6 and omega-3 fats affect your digestion and heart health, plus discover the best oils for frying, roasti...
In this episode, Alyssa Simpson engages in a deep conversation with Dr. Barbara Paldus, a Stanford-trained Ph.D. scientist, biotech engineer, and founder of Codex Labs and Decode Me. They explore the intricate relationship between gut health and skin conditions such as eczema, acne, and rosacea, emphasizing the critical role of the microbiome.
You will gain actionable insights into the science of the brain-gut-skin axi...
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