Though hearing about some of the scary diet tactics used by stars last month was unnerving, the names associated with the far from healthy tips weren't earth-shattering: Nicole Richie, Britney Spears and Lindsay Lohan are commonly featured in the weeklies when chatter of weight loss methods comes up. But the highbrow BFF team that is Katie Holmes and Victoria Beckham isn't the standard source of speculation. Sure, they're incredibly thin despite pregnancies, but they've so far managed not to be outed when it comes to specific Desperately Seeking Thinness claims. But after a recent sighting at Madeo, Katie and Posh have officially topped the "scary" list of celebs who use outlandish methods when it comes to staying skinny...