[aji]

people who drive probably aren't going to eat less because they're walking less. also, walking (to me) isn't just about saving money, it's about good habits and contributing less to traffic and pollution

edit: people travel farther distances in cars than on foot, usually. nobody would replace a 20 mile commute by car with 20 miles of walking.

[dpark]

I don't think the intent is to convince you to drive. It's just an interesting way to slice the data.

[chillwaves]

Not so interesting because they compare food (with highly variable cost and reason for consumption) to fuel. Going by the cheapest calories available, the way you would to fill your car with the most economical gasoline, walking is cheaper. (source is the article)

[loeg]

I eat a lot more running 30 miles per week than zero. And I drive, sometimes. :-)

[makmanalp]

and exercise!