> Yet there may still be individuals who can argue differently.

Of course! There are always outliers. But I think it is fair to say, as a general statement, that to lose or maintain weight, you have to focus on your diet, and exercise is not going to cut it. Sure, 1% of people might be able to "outrun their unhealthy diet", but that's not really useful information for the staggeringly vast majority of people out there. (Making up a percentage there; I think my point is still valid at 10%.)

1200 miles per year is a lot of running. That's 23 miles a week, or let's say ~6 miles, 4 days per week. Very few people are going to be able to -- or just flat out want to -- commit to that regimen.