Kim Kardashian stars as a lawyer in Kourtney’s new Lemme campaign — for a supplement inspired by breast milk

Kourtney Kardashian’s latest supplement might be her breast yet.

The reality TV star announced a new addition to her Lemme line today, offering shoppers gummy and liquid colostrum — inspired by human breast milk — to support beauty and gut health.

And for the first time ever, she’s enlisted her sister Kim to star alongside her in the new campaign — where Kim plays a full-fledged lawyer suing her big sis for not sharing the goods before releasing it to the public.

The Lemme Colostrum Gummies, $30, are made with colostrum and vitamin D3, while the Lemme Colostrum Liquid, $25, is a sugar-free liposomal creamer made with colostrum, lactoferrin (a protein found in human breast milk), immunoglobulins, MCT oil and vitamin E.

Both go on sale on the brand’s website on Thursday, November 6.

“I’ve taken colostrum for years because it’s amazing for gut and immune health, but I wanted to make it easier for everyone to enjoy,” she told The Post.

“Some people love the simplicity of a gummy, while others want to add it to their matcha or coffee, so we created both.”

If her new promo video is any indication, though, she’s been holding out on Kim.

While the Skims founder is still waiting to find out if she passed the bar in real life, she plays an attorney in the new ad — and she’s going after Kourtney for “failing to disclose her latest beauty and gut health secret.”

“In this family, we share everything,” she argues to the judge. “NDAs, glam squads, group chats — and yes, supplements. So when I found out she was working on Lemme colostrum, I waited. And waited. And waited.

“Meanwhile, Kourtney was looking more Facetuned by the day. But she kept saying, ‘Kim, it’s not ready yet.’ So I had her followed.”

Kourtney offers up a wink to fans of their show as she retorts, “Is it or is it not true that the prosecution once stated, and I quote, ‘Maybe if you had a f—ing business you were passionate about, you would know what it takes to run a f—ing business, but you don’t. Well, now I do. And jealousy isn’t grounds for litigation.”

Kim is the second family member to join one of Kourtney’s Lemme campaigns: Khloé did a shoot for Lemme Sleep in 2022.

What is colostrum?

Sometimes called “liquid gold,” colostrum is the first form of breast milk released by the mammary glands after giving birth. It’s loaded with nutrients, antibodies and antioxidants that help build a newborn’s immune system — but experts say adults might benefit too.

“Colostrum contains bioactive components like immunoglobulins, lactoferrin and peptides that
may help support gut lining, intestinal permeability and digestive health,” Dr. Kathleen Valenton, a board-certified physician and Lemme medical advisory board member, told The Post.

“These compounds can promote a balanced gut microbiome, support immune system health and help maintain intestinal integrity, all of which are important for digestion, bloating and gut health,” she added.

The perks don’t stop at your stomach.

“Colostrum supports beauty from the inside by supporting gut health and delivering nutrients that
support the gut-skin axis,” Valenton explained. “When your gut is balanced, you will see it in your skin!”

Amid a crowded supplement market, Valenton said Lemme’s formula stands out from the rest.

“People are often surprised to learn that not all colostrum is created equal,” she said. “The real magic lies in isolating specific bioactive proteins that are actually relevant for human health — not just taking a generic dairy extract.”

“Lemme uses a clinically-studied colostrum isolate with biofunctional proteins inspired by human breast milk,” Valenton continued.

Valenton said that both the liquid and gummy supplements deliver results, so consumers should select whichever product fits best into their routine and lifestyle.

Last week, Kourtney raised eyebrows with another launch: Lemme Purr probiotic lollipops designed to support vaginal health.

“Lemme Purr lollipops are such a fun extension of one of our best-sellers, Lemme Purr, and I love that they turn daily self-care into something sweet and simple,” she said in a press release.