Kim and Khloe Kardashian Launch QuickTrim in L.A.

Kardashians Celebrate Less "Intestinal Bulk"

While Kim Kardashian prevails among the media as one of Hollywood's curviest girls (some joked when she and Reggie Bush split up, Reggie dropped 140 pounds during pre-season), she's also one of the world's best-known diet formula pluggers.

She returned to that gig this week with sister Khloe, launching QuickTrim in Los Angeles Thursday. Paparazzi caught up with the colon-cleansing Kardashians at the Beverly Center's GNC, where the ladies posed before shelves (and shelves, and shelves) of the diet supplement in the purple bottle.

QuickTrim is said to be a lemonade-flavored drink that boasts a formula "designed to help rid the body of excess water weight, belly bloating and intestinal bulk." Lovely. Whether it's safe, we can't say, but pregnant sister Kourtney was noticably absent from the event's photos.

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That same day, Khloe met Kourtney for some baby-shopping...have a peek. Plus, the Kardashians aren't the only stars who love to, um, cleanse their systems. Halle Berry loves the colonic, and Tyra Banks aired the first TV colonic on Friday -- check it out.