Ramona Marquez Shares Swimsuit Photo With "Just Barbie Things"

British actress Ramona Marquez is posting some special selfies in honor of the new Barbie movie finally being released. Marquez, 22, best known for her role on Outnumbered, shared pictures of herself posing in front of a mirror in a white swimsuit, showing off tattoos and a belly piercing. "Just Barbie things," she captioned the post. "She's everything," a fan commented. How does she stay so fit? Read on to see 5 ways Marquez stays in shape and the photos that prove they work.

Marquez loves walking her dog in the UK countryside. Pet ownership offers many healthy benefits, according to the American Heart Association—including protection against heart disease: "Not surprisingly, dog owners who walk their dogs are more likely to achieve the recommended level of physical activity than dog owners who do not walk their dogs."

Marquez enjoys basketball and skateboarding with her friends. "Exercise and physical activity can be enjoyable," say the experts at the Mayo Clinic. "They give you a chance to unwind, enjoy the outdoors or simply engage in activities that make you happy. Physical activity can also help you connect with family or friends in a fun social setting. So take a dance class, hit the hiking trails or join a soccer team. Find a physical activity you enjoy, and just do it. Bored? Try something new, or do something with friends or family."

Marquez is not just an actress—she also sings and plays the guitar, which research shows is beneficial for brain health. "Just as playing an instrument works out your body, it also works out much of your brain as it can help improve your memory and mental performance," according to experts at the University of Alberta. "Musical training can strengthen your brain's executive function which takes care of tasks such as processing and retaining information, making decisions, and problem solving."

Marquez follows a plant-based, vegan diet. "Plant-based diets offer all the necessary protein, fats, carbohydrates, vitamins, and minerals for optimal health, and are often higher in fiber and phytonutrients," says Katherine D. McManus, MS, RD, LDN. "However, some vegans may need to add a supplement (specifically vitamin B12) to ensure they receive all the nutrients required."

Marquez enjoys cooking delicious vegan recipes at home whenever she can. "When cooking, you're a part of the meal process from start to finish — the grocery store to the plate. It makes you far more in tune with the food you're putting into your system," says nutritional counselor Sarah Jacobs. "At home, we mentally approach the meal differently, making us less likely to add unnecessary items that should be consumed in moderation."