Unhealthy lives, insufficient health care, and health disparities raise social policy as well as social justice concerns. Critics of the Affordable Care Act (“Obamacare”) have objected that our resources are finite, health outcomes are not entirely beyond an individual’s control, and government-sponsored health care is bad for the business of health and for taxpayers. These and other challenges invite us to reflect upon the demands of justice in health. Should health justice be rooted in fairness, well-being, or luck? Our examination of this question will be informed by reading the following books: Donald A. Barr, Health Disparities in the United States: Social Class, Race, Ethnicity, and Health. Norman Daniels, Bruce Kennedy, and Ichiro Kawachi, Is Inequality Bad for Our Health? Norman Daniels, Just Health: Meeting Health Needs Fairly. Madison Powers and Ruth Faden, Social Justice: The Moral Foundations of Public Health and Health Policy. Shlomi Segall, Health, Luck, and Justice.