(Andrea Bernstein, Transportation Nation) A new University of Illinois study says it does. The language is kind of academic, but the conclusion is "if the relationship [found in the study] holds, each 1% reduction in annual VMT [Vehicle Miles Traveled] per [licensed driver] would be associated with a 0.8 % drop in the adult obesity rate six years later. ..For the United States as a whole, given an adult population of around 230 million...this implies that reducing daily vehicle travel by one mile per licensed driver (i.e. 365 miles per year) would lead to almost 5 million fewer adults being classified as obese after six years."
You can read the full study, including all the usual academic caveats -- i.e. this might all be a coincidence -- here.
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