Kim Kardashian Posts Throwback Picture of Her "Skinny Days"

Kim Kardashian still isn't satisfied with her post-baby body! On Tuesday, July 15 -- more than a year after giving birth to daughter North West in June 2013 -- the reality star posted a photo on Instagram reminiscing about her "skinny days."

" Throwback to a few years ago #SkinnyDays," Kanye West's wife captioned a picture of herself looking svelte in a tight white dress from 2010. "#OnTheTreadmillRightNOW," the 33-year-old added.

Back in October, during an interview with Jay Leno on The Tonight Show, Mrs. West admitted she dropped 50 pounds after giving birth to her now 13-month-old daughter, thanks to a strict Atkins diet. Kardashian continued to drop pounds leading up to her lavish nuptials to West in May.