Associations between supermarket availability and body size in Australia: a cross-sectional observational study comparing state and territory capital cities.

For Australian capital cities, greater availability of supermarkets is associated with healthful body size. Marked between-city variations in body size, supermarket availability, and relationships between supermarket availability and body size do not, however, support universal, "one-size-fits-all" solutions to change built environments to support healthful body size.