Guidelines call for better evidence on the health outcomes after living kidney donation. Author Amit X. Garg, MD, PhD, London Health Sciences Centre, and editorialist Elizabeth C. Lorenz, MD, Baylor College of Medicine, discuss a new study that compares the risks of hypertension and other health outcomes in living kidney donors, with JAMA Associate Editor Wolfgang Winkelmayer, MD, ScD. Related Content: Hypertension and Kidney Function After Living Kidney Donation Prospectively Examining Outcomes After Living Kidney Donation Kidney Transplant Outcomes From Deceased Donors Who Received Dialysis Expanding the Overton Window in Deceased Kidney Donor Eligibility—Enough to Make a Difference?