Shay Mitchell in Bathing Suit is "Nesting/Resting"

Shay Mitchell is enjoying her final days as a mother of one. The actress, who is expecting her second child, showed off her fabulous pregnant figure in a swimsuit on Instagram Tuesday. "Nesting/ resting and all the things. Enjoying the last moments of it being just us. Thanks to all the amazing aunties for always being there for us ," she captioned the images. How does the You star keep herself fit? Read on to see 7 of Shay Mitchell's top tips for staying 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!

Shay is a big supporter of goal setting. In early 2021 she declared that she had spent the past year trying to "feel fine." She added: "For me that came in the form of comfort food, comfort clothes and throwing my fitness routine out the window. And that was okay…for awhile. They're called unprecedented times for a reason. But I also learned about physical and mental self-care, and made a pact with myself that 2021 would be different. I wanted to focus on myself again, because I'm the best version of myself for Atlas – and everyone else – when I take care of myself first."df44d9eab23ea271ddde7545ae2c09ec

Exercise is a big part of Shay's life. In 2021 she teamed up with OpenFit. "A doable time frame 30 minutes a day for 5 days a week for 4 weeks," she wrote. "A clear start, a clear finish and a something that I could totally commit to. I have loved getting up these last four weeks and having a routine and a challenge to start the day. I feel more healthy, energetic and engaged…which makes a better me."

You won't find Shay counting calories or eliminating carbs. "I don't believe in diets," she said in an Instagram story, per Eat This, Not That! "Personally, they don't work for me. I think you need to eat in moderation. That is the only thing, at least for me, that works."

Shay maintains that "it's all about balance," when it comes to diet and exercise. "A lot of people that know me know that I absolutely love food, pizza in particular. I work out not only to balance food, but also to keep my mind focused. And for me, that comes in many different forms. It can be taking a walk outside, boxing, or going to dance. Anything physical has such a positive impact on people; the dopamine and serotonin that get released when you work out—afterward, you feel amazing," she told Byrdie.

Shay mixes things up when it comes to exercise. "I have to switch it up because I get bored, so I'll try different classes," she said. "Cardio for me is a spin class. I think it's great. I get so amped up with other people in the room, and there's just a really good energy about it. So I'll usually start with a spin class, then it will be something like weights or working out with my amazing trainer—we do a mix of Pilates and leg toning. And then I'll go take a Body by Simone class. There are so many amazing classes here in L.A., but my favorite is boxing. I love it because there is the cardio at the beginning, and then we're sparring afterward and then we do stretching and weights."

Shay encourages hydration "I drink a lot of water," she revealed to Byrdie. "I try to opt out of coffee and drink green tea instead." "The resume for green tea extract is pretty expansive. Aside from adding some oomph to your system with caffeine, it's touted for weight loss, lowering your risk of heart disease, skin health and more," says the Cleveland Clinic. "Drinking green tea itself is associated with a lower risk of coronary artery disease."

Shay brings exercise essentials with her so she can squeeze in a workout whenever she can. "Just taking a skipping rope with you wherever you are is such a good idea because it's such an amazing workout. It's the easiest, and I can bring it with me anywhere. And you only need a small amount of space," she told Byrdie.