You have an immune system, but do you know where to find it and how it works? Dr. Grace Liu is on Bulletproof Radio this week to show you how to treat your gut for optimal performance. Hear an upgraded conversation about: probiotics, butyrate, evolution, and instructions on how to begin using resistant starch to biohack.

Dr. Grace Liu, also know by her blog name Dr. BG Animal Pharm, is a medical pharmacist with scientific, nutritional, and pharmacological training. She has studied plant biology and nutritional science, has a doctorate in pharmacy, is a certified Crossfit Nutritionist by Robb Wolf, and has a certificate from the Institute for Functional Medicine. She currently spends her time between the Bay Area and China.