Gut Health Hype: What Actually Works? | Christopher Gardner, PhD

Before you buy another gut-health product, hear what the human research actually found. Stanford nutrition scientist Christopher Gardner, PhD, explains the evidence on fiber, fermented foods, and inflammation. When you're trying to feel better, a promise of billions of beneficial bacteria can sound convincing. But what do those numbers really tell you about the product you're buying? Gardner joins Chuck Carroll on The Exam Room Podcast to unpack a human trial that surprised his own research team. The fermented-food group increased gut microbial diversity and had lower levels of several inflammatory markers, while the fiber group's responses were more complicated. He explains why these findings do not mean fiber has failed, and why a study of foods cannot automatically validate every product marketed for your microbiome. In this episode: - What prebiotics, probiotics, synbiotics, and postbiotics mean - Why a bigger CFU count does not establish a better health outcome - How fermented foods and fiber produced different results in a small human trial - Why mouse findings did not predict the human results - Why fibermaxxing can be a rough transition for your gut - The limits of research measurements of inflammation - Gardner's response to seed-oil claims - How to build a varied, plant-rich eating pattern you can sustain - What he has learned from making 250 batches of kombucha 📕 Food Sense: What to Eat and Why 👉 https://link.amazon/B0ebl1EAc 🔬 Gut Immune System Trial 👉 https://bit.ly/gutimmunetrial Exam Roomie of the Week - Lori Goosmann  Make a gift to support The Exam Room Podcast and the life-changing work of the Physicians Committee. All gifts of $20 or more receive a mention on the show. Gifts of $100 or more receive an exclusive Exam Room Podcast tote! 🙏 Support The Exam Room Podcast & PCRM 👉 https://bit.ly/SupportExamRoom - About Us - The Physicians Committee is dedicated to saving lives through plant-based diets and ethical and effective scientific research. We combine the clout and expertise of more than 17,000 physicians with the dedicated action