Kourtney Kardashian in Bathing Suit is in "Love" 

Kourtney Kardashian is extremely happy with Travis Barker, and she wants the world to know about it. She just posted a series of photos and videos on Instagram of the happy couple spending a day at Laguna Beach, California. Kardashian wore a black swimsuit, showing off her gym-toned body. “Oh how I love thee 🤤” Barker commented. How does she stay so fit? Read on to see 5 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 Bathing Suit Photos!

1. She Occasionally Enjoys Vegan Food

Kardashian eats a pretty healthy diet. While she isn’t vegan or plant-based like her little sister, Kim, she does still enjoy vegan options once in a while. She recently posted this photo of herself enjoying a plant-based burger and vegan fries from a restaurant on her Instagram story. She captioned the photo, “Vegan.”

2. She Drinks A Lot Of Water

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Kardashian tells Byrdie that one of her ways of losing weight, and preventing herself from overeating is staying hydrated. “Whenever I notice that I’m feeling bloated or like I need to step up [my body] or something, it’s always because I’m not drinking enough water,” she says. “When I step up the water, I’ll instantly lose like two pounds in one day. Half the time when you’re hungry, you’re really thirsty,” she explains. “I mean, I eat constantly throughout the day, so I’m not saying don’t eat and just drink water, but I notice I eat less just because I’m so full from the water.”

3. She Does Reformer Pilates

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One of the ways Kardashian likes to stay in shape is by doing Pilates. And not just any old type of Pilates. According to this video she posted on Instagram, Kardashian likes to do reformer Pilates, and is seen hanging upside down doing arm exercises. In her workout session, Kardashian was joined by her friend, and Poosh co-founder, Sarah Howard. Kardashian captioned the post, “Breathing, birds, and bending.”

4. She Did The Keto Diet

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Kardashian revealed in a post on Poosh, that she likes to do the Keto diet as a way to stay healthy. She says that her doctor recommended that she try this, after some test results came back. "[My doctor] tested my muscles and found that I had high levels of mercury and lead in my system... My body never looked better than when I did the Keto diet two and half years ago, when I did it for two months [and] in my experience, it's the best method to train my body to curb sugar cravings, burn fat and kick-start weight loss."

5. She Loves Collagen

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Kardashian revealed on Poosh that she’s a fan of collagen, especially drinking it. She said in a post that she likes to mix collagen powder with water in the mornings, and says that she’s seen a lot of differences. "Collagen helps me feel full and balances insulin levels, which can help avoid sugar crashes," she wrote. "It also helps my body recover more quickly from my intense workouts by supporting my bones and joints."