Dr. Becky Campbell, a board-certified doctor of natural medicine, dives into thyroid disease, autoimmune conditions, and histamine intolerance. She distinguishes functional medicine from traditional approaches, emphasizing personalized care. The conversation reveals insights into SIBO, hormone testing, and the impact of diet on gut health. Dr. Campbell also discusses the importance of liver health, the effects of various diets, and how mental state influences overall well-being. Lastly, she provides practical tips for managing histamine intolerance and the future of functional medicine.