There's a scene in the movie Sideways when Thomas Hayden Church (the voice actor) hits on the overweight waitress at the steakhouse, later saying to Paul Giamatti that overweight girls were better because they were "grateful, ya know?". Yikes!
5'0" female, 44 years old. Started Primal October 31, 2011, at a skinny fat 111.5 lbs. Low weight: 99.5 lb on a fast. Gained back to 115(!) on SAD chocolate, potato chips, and stress. Currently keeping food tracker.
I (try to) follow by-the-book primal as advocated by Mark Sisson, except for whey powder and a bit of cream. I advocate a two-month strict adjustment for newbies. But everybody is different and should tweak Primal to their own needs.