As long as you're not on some crash diet Subway isn't that bad, much better than normal fast food. Just get like a 6 inch sub on wheat, something like just turkey and vegetables, if you have to have mayonnaise just tell them not to put a ton on. Its not gonna work for Donny or somebody like that who's (I assume) cutting weight but if you're just trying to be more healthy than its a lot better than McDonald's.

Worked for Jared and all that.