From Diets to Supplements: Tackling Nutrient Deficiency, With Chris Kresser Functional Medicine Coaching Academy From Diets to Supplements: Tackling Nutrient Deficiency, With Chris Kresser Functional Medicine Coaching Academy From Diets to Supplements: Tackling Nutrient Deficiency, With Chris Kresser Functional Medicine Coaching Academy Roughly 70 to 80 percent of your immune system lives in and around your gut. Yet the gut immune connection is almost never discussed in standard clinical practice., , In my new Revolution Health Most gut health products address symptoms. They don't address what's driving them. After 15 years in clinical practice, I kept seeing the same pattern. Patients were trying product after product, following