Kristin Cavallari in Swimsuit Steams Up Mexico 

Summer may be over but Kristin Cavallari is still heating things up! The reality star-slash-fashion entrepreneur enjoyed a Mexico getaway over the weekend, heating up social media with a few swimsuit photos. “Sorry I haven’t responded to you,” she captioned one of herself, lounging in a jacuzzi. How does the mother-of-three maintain her fantastic figure? Read on to see 7 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 Bikini Photos!

1. Consistency Is Key

In a recent interview with Us, Kristin revealed that when it comes to staying in shape, it’s all about consistency. “It’s important to give ourselves grace and not beat ourselves up,” she said. “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.”

2. She Designs Her Own Workouts

Kristin Cavallari/Instagram

Kristin no longer works out with a personal trainer. Instead, she has designed her own workout. “I lift weights, but I do circuit training to keep my heart rate up. I also started doing hot yoga every once in a while. I don’t do it as often as I would like, but I love it when I’m able to make it happen,” she told Us.

3. She Eats Dinner Early

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Kristin eats her final meal of the day very early. “I eat with my kids every night at 5:15 p.m.,” she told Us. “I find that I sleep better when I eat early like that. And I eat enough so that I’m not hungry before I go to bed.”

4. Her Diet Is Very Healthy

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Kristin told Us that she eats food “as close to as its natural state” as much as she can. “The way I eat is a lifestyle. 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.” That means no processed foods. "We don't do anything white, so we don't do white flour, white sugar, or white salt," she explained to Women's Health. "We definitely are a meat family. I've never been vegan or vegetarian; I don't think I could be. We actually have a freezer full of meat with all kinds of wild game."

5. She Makes Most of Her Own Food

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“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 told Us. However, when she does dine out she indulges. “When I go out to eat or go on vacation, I eat whatever I want and then I really enjoy it.”

6. Her Goal? Lean Muscles

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“I like having some muscle definition without being bulky or looking ‘jacked,'” she told Us. “Seeing results makes me want to push harder and gets me excited in the gym. I can honestly say my butt has gotten a lot bigger from being consistent in the gym, working on it for the past year. These results don’t happen overnight. It’s important to be patient and stay the course.”

7. She Avoids Cardio

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"I don't do any cardio," Kristin told Well + Good. "Cardio used to be all I did before I had kids, but once I had them my lifestyle changed—I'm a much healthier eater and I hardly drink alcohol, so I've found that it's about building and maintaining muscle rather than losing weight now."