Dr. Anthony Chaffee

Dr. Anthony Chaffee's path to medicine started early. He began university at the age of 15, driven by an obsession with understanding how the human body works at its most fundamental level. That curiosity shaped everything that followed: a medical degree from the Royal College of Surgeons in Ireland, and neurosurgical training in Australia, where he still lives today.

Alongside his medical career, he was a professional rugby player and All-American athlete. It was during his playing years that he first encountered the idea of a meat-based diet, initially as an experiment to push his recovery and performance. The results were so dramatic that he never went back. What started as athletic curiosity became a long-term framework for thinking about human nutrition.

Over more than two decades on a carnivore diet, he developed a deep skepticism of mainstream nutritional dogma. As a doctor, he kept seeing patients suffering from autoimmune conditions, metabolic dysfunction, and chronic pain that didn't respond well to medication, but began reversing dramatically when they removed plant foods and processed carbohydrates from their diet.

That clinical experience, combined with his own, became the foundation for The Plant Free MD podcast, where he interviews leading researchers, surgeons, and clinicians from around the world to dig into what the evidence actually says about meat, plants, fat, fiber, cholesterol, seed oils, and the metabolic underpinnings of modern disease.

Alongside the podcast, Dr. Chaffee runs the Carnivore Challenge, a structured 90-day program that gives people the framework, tools, and community support to do an animal-based reset. Thousands of people have used it to address conditions ranging from arthritis and IBS to type 2 diabetes and depression.

He is on a mission to cut through the noise of modern dietary advice and give people what they actually need: a clear, science-grounded, biologically appropriate way of eating, and the confidence to take their health into their own hands.