Taking to her website, Kanye West's wife, who welcomed son Saint on 5 December (15), updated fans on her weight loss progress, two months after signing on as a brand ambassador for the Atkins diet.

"Wearing my old workout clothes! They fit again," the mother-of-two wrote, admitting she wanted "more things to start fitting".

"42 lbs (pounds) and 28 to go!" she added.

The words were accompanied by a still taken from her family's Keeping Up with the Kardashians reality show, which showed Kim wearing a white bra with a thin dressing gown open over the top to display her ample cleavage as she looks over her shoulder in a mirror.

The star previously revealed her goal was to drop 70 pounds (31.8 kilograms), so her latest update shows she is well on her way to hitting the target.

Her revelation comes a day after she attended a private dinner following the Daily Front Row Fashion Los Angeles Awards at Mr Chow restaurant in Beverly Hills, California, on Sunday night (20Mar16).

Accompanied by her 38-year-old husband, Kim wowed in a black sequin Calvin Klein gown, which hugged her figure, and she made the outfit even more chic by completing the look with a pair of Tom Ford heels.

The star also showed off her newly-dyed ombre locks, which she unveiled on 16 March (16) in a late night Snapchat post, which she captioned: "Midnight haircut."

Celeb stylist Cesar Ramirez was behind the shorter do, which featured blonde tips at the ends of her dark locks. Kim was clearly thrilled with the look, as she took numerous selfies from every angle to give fans a full view of her new style.