B’ Spokes: I would like this idea a lot better if it also included biking. Imagine "Regular Burger – biking 10.4 miles" and people think, you know maybe I will bike to work so I can eat better. Well that’s my two cents.
The Scientific American article: https://www.scientificamerican.com/article.cfm?id=labels-that-translate-calories-into-walking-distance
Biking in Baltimore