Kim Kardashian furiously denied claims that she digitally altered photos to make herself appear slimmer before posting them on Instagram.

"It sucks when people make up surgery or Photoshop lies," she tweeted, "when I am so disciplined & work so hard! Just trying to motivate others & show anyone struggling with weight they can totally achieve whatever they want if they are dedicated!"

According to the Daily News the reality star was photographed in Los Angeles on Friday confidently showing off her post-pregnancy figure in tight white jeans and a slim fitting top.

Kardashian gave birth to daughter North in June last year. She received harsh criticism while pregnant and was even unflatteringly compared to a killer whale.

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