What is Functional Medicine?

For a long time, health and nutrition—at least how I understood them—meant eating low-fat, avoiding animal protein, restricting calories, overperforming, relying on copious amounts of coffee and artificial sweeteners, and running myself into the ground. Somehow, that all balanced out the weekends I spent drinking too much—or so I thought. I had no idea how much damage I was doing to my bones, liver, reproductive system, and mental health.