270. Dr. Tania Dempsey: Mast Cells, Chronic Fatigue, & Hidden Inflammation

The Ultimate Human with Gary Brecka · May 19, 2026 · 1h 7m

Up to 1 in 5 people may have this condition and never know it and the diagnoses they've been handed instead, from PCOS to IBS to chronic fatigue, may all be pointing at the same hidden cause. In this episode, I sit down with Dr. Tania Dempsey, Johns Hopkins-trained internist and one of the leading researchers on Mast Cell Activation Syndrome, who tells me that 100% of her PCOS patients test positive for MCAS, and walks me through why mast cells may be the most overlooked driver of chronic illness in modern medicine. If you've been told your symptoms are idiopathic, or that nothing's wrong…