The Keeping Up With the Kardashians star, 33, welcomed daughter True in April and has been working hard to shift the baby weight ever since.

Khloe has documented her workout regime on social media and showed off the results on Instagram.

Posing in front of a mirror wearing a black vest top and ripped jeans, Khloe revealed her tiny waist: “Back in a pair of my Good American jeans, yes!

“My workouts are working.”

She then did a little wiggle to celebrate while wearing the trousers from her own denim line, according to The Sun.

She made a rare appearance this week, watching her cheating boyfriend, Cleveland Cavaliers star Tristan Thompson, in the NBA play-offs.

Earlier this week, Khloe — who is still living with Thompson at his Cleveland home as they raise the daughter — took to her website to reveal the healthy snacks she eats post-pregnancy.

She said: “I’m currently on a low-carb diet that my nutritionist, Dr Goglia, gave me.

“It has lots of protein, so I’m able to go all out at the gym, but the best part is that I’m never hungry because I’m always eating!

“What you eat when you’re done working out is so important.

“I have two eggs (they can be poached, over easy or scrambled) with one cup of oatmeal and another of fresh fruit, like berries.”

Kardashian also revealed how before working out she has a tablespoon of jam and another of almond butter.

Last month, The Sun reported that the star was hitting the gym “every day” in a bid to distract herself from feeling “miserable and isolated” as she gets to grips with motherhood thousands of miles away from her famous family.

The source said: “Khloe is feeling lonely and isolated”.

“She’s missing her sisters and mum desperately. They FaceTime all the time but it’s not the same,” the insider added.

“She hasn’t seen them in person since they visited for True’s birth. She’s in the gym every day and is hoping the endorphins from working out will lift her up.”

This article has been edited and republished from The Sun with permission.