Reality star and fashion mogul Kristin Cavallari is showing off her body in a new Instagram story. The mom of three recently posted a story of herself wearing a revealing black bikini, while spending time at the beach with a friend—likely in Cabo, where she has been having fun. Read on to see five ways Kristin Cavallari stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

Cavallari has been in the public eye ever since she was young and starred on the MTV reality show, Laguna Beach. And this took a toll on her body image and insecurities. Cavallari revealed in her book Balancing in Heels that she struggled with herself, and felt like she had to do extreme diets. "As early as high school, I thought that depriving myself of certain foods (sweets and carbs) and limiting calories would result in the body of my dreams," she wrote. However, today Cavallari says she doesn't diet anymore, and focuses on eating healthy. She writes that this change has made her "the happiest I've ever been."

Cavallari says that she tries to eat healthy, and that she tries to avoid a lot of processed and refined products. Mainly, she says that she avoids refined wheat products. "I'm not eating gluten free, but I try to avoid refined wheat products since they've been shown to spike blood sugar levels faster than some candy bars," she writes in her book.

Cavallari tells Us Weekly that she makes sure to eat as healthy as she can each day, and says that she "eats as close to the natural state" as she can. "The way I eat is a lifestyle," she shared. "Organic as often as possible, tons of veggies, meat, nuts and seeds, complex carbs like buckwheat soba noodles, berries, tons of fat — I even eat butter." 

Cavallari is big on cooking her own meals, and she says that it's better for her. "I make dinner 90 percent of the time. I think that's important because that's the only way to truly know what's in your food," she says to Us Weekly. Cavallari has some recipes for her three kids. "My kids love pasta," she says. "We use brown rice noodles or lentil noodles."

Cavallari tells Us Weekly that a big part of her health and her lifestyle is giving herself grace and staying consistent. "It's important to give ourselves grace and not beat ourselves up," she says. "For so many years in my early 20s, I was all or nothing. I have the best relationship I've ever had with food and health because I've let go of a lot of that control. It's about consistency — just keep showing up." Cavallari revealed that she doesn't use a nutritionist or expert to help her, and that has helped her find this balance.