Pia Mia in Bathing Suit Shares a Beachy Selfie

Singer Pia Mia, known for  "Do It Again" and "Touch," says she gets antsy when she has too much time on her hands but she knows when to relax, too. Mia posted a selfie from the beach, looking happy and serene in a pink and purple bathing suit. How does she stay so fit? Read on to see 5 ways Mia 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!

Mia is obsessed with seafood, including octopus, lobster, sushi, and sashimi. "Sushi can be a very healthy, green type of food — if ordered simply," says Maxine Smith, RD, LD. "If you have a craving for sushi, or if you enjoy that social aspect of eating sushi with other people, go for it. It can be a fun experience. You just want to be selective and do your research ahead of time, so that you can nourish your body well and make the best decisions," she adds. "With a little foresight, you can make healthy choices."

Mia enjoys avocado toast for a healthy, delicious meal. "Avocado toast is one of the healthier brunch options at many restaurants, but you do have to be careful," says Kylie Arrindell, wellness dietitian at Houston Methodist. "From how much avocado is used to what's piled on top, avocado toast can go from a healthy to a not-so-healthy choice pretty quickly. Avocado contains a lot of heart-healthy unsaturated fats, as well as a good amount of fiber. Plus, if you're eating at a restaurant, you have a lot of control of what goes on top of your avocado toast. You can say 'no cheese' or 'no bacon,' which you can't always do as easily in other unhealthier breakfast dishes."

Mia considers herself a work in progress, and doesn't stress about the next step. "Understand that, whatever career path you're taking, it's never going to be just a straight, 'Okay, this is what I want to do and now I'm having major success and I'm the best at what I'm doing and I'm reaching all these goals that I've set for myself.' It's always a work in progress, there's always work to do. There's always going to be ups-and-downs. You just have to remember if this is your dream and this is your passion, try to be present in the moment and enjoy the journey and appreciate the people that are around you and supporting you," she says.

Mia relies on cues from her body as to her diet—she eats whatever she wants and refuses to eliminate any food groups. "When you no longer have so much stress and anxiety surrounding food, you free up space to just be and enjoy the food – and the people – around you," says Alissa Rumsey, MS, RD, CDN, CSCS. "You can engage in social interactions more often and can put your attention on spending time with friends and family, rather than worrying about your diet."

Mia uses purple shampoo to maintain her hair whenever she goes blonde. "I normally just wash it with purple shampoo once a week and that keeps the tone cute," she says. "I try to keep heat off of it as much as I can. I use It's a 10 Miracle Daily Conditioner, and I always comb out my hair before I take a shower so I don't have to brush it when it's wet because then it just becomes a mess."