IBS

“Dr. Izabella Wentz has written the definitive guide to uncovering and healing the root causes of IBS. For anyone who’s been told their digestive symptoms are ‘just in their head,’ this book offers both validation and transformation. With compassion, clinical precision, and decades of experience in root-cause medicine, Dr. Wentz empowers readers to finally understand why they’re suffering—and how to reclaim their gut health for good.” —MARK HYMAN, MD, New York Times bestselling author of Young Forever and Food Fix“Dr. Wentz combines compassion, science, and functional medicine to demystify IBS and bring hope to millions suffering in silence. This book is a game-changer.”—WILL COLE, FMP, New York Times bestselling author of Gut Feelings and The Inflammation Spectrum“Dr. Izabella Wentz has once again created a resource that’s both empowering and deeply healing. If you’ve been told, ‘it’s just IBS,’ this book will help you dig deeper, uncover the real root causes behind your symptoms, and guide you step-by-step toward lasting relief.”—JOLENE BRIGHTEN, FABNE, MSCP, author of Is This Normal and Beyond the Pill“We’ve normalized daily bloating, urgent bathroom visits, and food fear to the point that countless women suffer in silence, often unknowingly, mistaking real distress for ‘just my sensitive stomach.’ Wentz reframes IBS as solvable with clear, stepwise strategies that respect bioindividuality and finally put women back in charge of their gut, energy, and lives. This functionally minded approach is exactly what many of my patients need and deserve.”—CYNTHIA THURLOW, NP, author of Intermittent Fasting Transformation“As someone who’s been on the front lines of IBS care for over two decades, I know how overwhelming this journey can be. Dr. Wentz offers a clear, compassionate, and science-informed approach that empowers readers to finally get to the root of their digestive struggles. This is a valuable companion for anyone who’s been told, ‘it’s just IBS’—and knows there’s more to the story.”—VINCENT PEDRE, MD, author of Happy Gut and The GutSMART Protocol

Izabella Wentz, PharmD, FASCP, is a pioneering clinical pharmacist and bestselling author with a passion for getting to the root of complex health conditions. Dr. Wentz holds advanced certifications in Medication Therapy Management and Diabetes Care. She has consulted on thousands of difficult cases during her career and is known for her ability to translate cutting-edge research into practical, life-changing protocols. Her previous books—Hashimoto’s Protocol, Hashimoto’s Food Pharmacology, and Hashimoto’s Thyroiditis—have helped hundreds of thousands around the world. Dr. Wentz lives in Austin, TX with her husband, Michael, and their children.