Kourtney Kardashian Posts Bikini Selfie From Mexico

Kourtney Kardashian is currently vacationing in Cabo San Lucas with her love, Travis Barker, mom, Kris Jenner, and her boyfriend, Corey Gamble -- and the reality star, 42, is steaming up the vacation spot with her fabulously fit bikini body. Over the last few days, Kourt has shared a bunch of photos of herself in various bikinis, showcasing her hard work in the gym. How does she manage to stay in such great shape? Read on to see 7 ways Kourtney Kardashian 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 Bikini Photos!

1. Her Diet Is Strict

Kourtney maintains a strict diet, eating organic only and keeping gluten and dairy to a minimum. She has also dabbled in keto and intermittent fasting, in which she would fast from 7 pm until 11am, after her morning workout. And, once a week she would do a 24-hour fast drinking just water and bone broth. Usually, her diet consists of whole foods like avocado, oatmeal, fish, fruits and veggies and other whole grains.

2. She Splurges (Not Cheats) Sometimes

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In her Instagram stories from Mexico, Kourtney revealed that she was eating cheese, grapes, wine, and bread. “What not to eat, metabolism edition,” she wrote. Later, she shared an image of smores. In a blog post she revealed that her indulgences are inspired by travel. "I don't want to throw my body off by eating whatever I want when I travel and then be really strict other times,” she explained. So, she eats pizza or ice cream "in moderation," but refuses to use the word cheat because it is negative, "which doesn't make sense for all the hard work and eating healthy I do most of the time."

3. Exercise Is a Priority

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Kourtney makes exercise one of her top priorities. "I think I take time for myself to work out every day, which I never did—especially having three young kids," she tells E! News. "I just never made it a priority, and now it just makes me feel so much better—mentally and physically."

4. She Mostly Strength Trains

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Kourtney’s workouts usually begin with a jump roping or running session followed by strength training. Sometimes she will use a stairmaster or Pilates reformer or floor exercises like leg kick-backs with a resistance band or kettlebell squats.

5. She Has a Workout Buddy

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Kourtney revealed to E! News that her go-to workout buddy is her sister Khloe. "I know for my body, I need four to five days a week of working out. Khloe and I really push each other to do that,” she said.

6. She Doesn’t Vacation From Her Workouts

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"Even though I like to relax on vacation, getting a workout in is still important to me,” she told E! News about why she exercises during her vacations, adding that they also help her fight off jet lag and make it easier to get back to her routine once she gets home.

7. She Takes Collagen, Apple Cider Vinegar, and Probiotics

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Kourtney is a big fan of supplements. "Every morning, when I wake up, I take collagen supplements on an empty stomach," she wrote in a blog post, adding that she follows it up with a glass of water mixed with one tablespoon of organic apple cider vinegar. "Both of these habits have a ton of health benefits that affect everything from your skin to the way your body processes nutrients," she wrote. After a vegan probiotic shot she makes avocado pudding with the fruit and E3Live blue-green algae, bone broth protein powder and MCT oil. "It only takes a few minutes to make," she says, "and it provides healthy fats to give me energy before a workout."