Aerobicize me!

We guess it’s good that McDonald’s is launching a new global campaign to promote fitness, given its super-sized ad budget, but something bothers us about the new effort—featuring the beyond-buff Venus and Serena Williams—anyway. We get that same squeamish feeling about this effort that we get when we see one of those ads from Philip Morris warning against smoking. It’s probably because we can’t get that adage “You are what you eat” out of our heads, and if McDonald’s is the land of the