From the Association for Size Diversity and Health website:

"The Association for Size Diversity and Health (ASDAH) affirms a holistic definition of health, which cannot be characterized as the absence of physical or mental illness, limitation, or disease. Rather, health exists on a continuum that varies with time and circumstance for each individual. Health should be conceived as a resource or capacity available to all regardless of health condition or ability level, and not as an outcome or objective of living. Pursuing health is neither a moral imperative nor an individual obligation, and health status should never be used to judge, oppress, or determine the value of an individual."