Kim Kardashian in New York on April 5, 2012 and in Los Angeles on April 9, 2012. Credit: Alo Ceballos/FilmMagic; Splash News

Despite recently shedding 10 pounds in 10 days, Kim Kardashian doesn't feel the need to flaunt her newly slimmed-down shape.

The reality star, 31, stepped out in loose-fitting beige silk trousers, which she paired with a long-sleeve white shirt and long cross necklace while filming Kourtney & Kim Take New York at STK in the Big Apple.

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The covered-up ensemble was stark contrast to the sexy look she sported last week for a lunch date with possible new beau Kayne West. Kardashian wowed in skin-tight leather pants by J Brand, which retail for almost $1,500.

So how did she lose the weight so fast? "I went gluten-, dairy- and sugar-free," the (slightly less) curvaceous brunette, who used Sunfare's 1,300 calorie-a-day meal-delivery program, tells Us Weekly.