Kim Kardashian sparked concerns over her seemingly thinner appearanceCredit: Instagram/kimkardashian

It came after Kim posted a pic of her and Kendall Jenner, where she looked even smaller than than her runway model sisterCredit: Instagram / Kim Kardashian

On Friday, Kim, 43, took to Instagram to share a carousel of throwback pics, including solo shots of Kendall, 28, and some of the siblings together.

One, in particular, raised eyebrows as it showed the duo slumped on the couch while dressed in silky floor-length dresses.

Kendall rocked a silver dress with a halter top, and Kim wore a metallic green-colored number with a large cutout along her midsection.

They had their bare feet on the coffee table as they smiled at the camera.

Kim wrote a heartfelt message in her caption for the birthday girl, but many fans couldn’t help but notice the star’s seemingly smaller physique compared to Kendall’s.

The post was shared on a popular online thread where one person commented: “[Kim] looks weirdly like a skeleton.”

Another added: “What is their obsession with looking smaller than ever?” while a third remarked: “She looks frighteningly small.”

Earlier this week, Kim turned heads when she ditched her pants for a nude bodysuit embellished with Swarovski crystals.

The outfit was a part of Kim’s new Skims collaboration with the jewelry company.

She modeled the ensemble and posted the snap to Instagram, announcing the upcoming launch in her caption.

However, again, fans were distracted by Kim’s skinny figure as one commented: “Kim clocking 80 hrs a week. Telling you that’s why you should eat.”

SHRINKING FRAME

Days before, Kim drew attention to her tiny waist after posing for a photo at a Skims event, announcing that the brand was now the official underwear partner of the National Basketball Association.

In one pic, the fashion mogul held a basketball while standing beside the Brooklyn Bridge in New York.

She donned a pink Chanel coat, black leggings, and pointed black boots that accentuated her curves and trim midsection.

While many congratulated Kim on her major career move, others were taken aback by her slimmer figure.

“How can someone’s waist be thinner than a basketball?” one commenter asked.

“Kudos to the editor for keeping the ball size the same,” another mentioned.

“They had to have edited her a** cheeks from hanging down through her thigh gap?” said a third.

”WASTING AWAY’

Weeks earlier, Kim raised alarm after she debuted her thinnest figure yet in a leather miniskirt.

She wore the risqué skirt with a cropped yellow top and towering black pumps to her sister Kourtney’s baby shower.

Her 10-year-old daughter, North, matched, wearing a pink crop top instead and chunky black-heeled boots.

Fans questioned her appearance and shared their concerns over the reality star’s well-being amid her weight loss.

“Kim is so tiny compared to her preteen daughter,” one fan observed.

“Kim is wasting away what happened to her beautiful figure. She’s too thin,” someone else wrote.

“Kim too damn skinny now,” a third complained.

“She so skinny,” a fourth noted.

“Kim looking a little emaciated,” a fifth claimed.

“Getting too skinny…” chimed in one more.

Kim showed off her pin-thin frame in a nude bodysuit earlier this weekCredit: Skims

The outfit was to promote her new Skims collaboration with SwarovskiCredit: Instagram/Skims/Kim Kardashian/@mertalas

Kim debuted her thinnest figure yet last month when she posted a photo of her donning a leather miniskirtCredit: Instagram/kimkardashian