Felix Mueller is a Polycystic Kidney Disease patient and holistic health coach. After receiving his own PKD diagnosis early in his teenage years, he found a way to improve his kidney function and reducing kidney volume back to the normal range via a version of the paleo-ketogenic diet and targeted supplements. With this novel approach, he became the first patient to document the beginning of a reversal process in PKD.

He has shared his findings with the online community he founded in 2016 for fellow sufferers and likeminded individuals. Felix is now a personal coach to patients and has given lectures on Polycystic Kidney Disease at various institutions, including the Cleveland Clinic.