Singer Stephanie Salas is enjoying the stunning sea and sands of Acapulco, Mexico. Salas posted pictures and video of herself at the beautiful port town, wearing a colorful blue swimsuit and big hat. "The sea and me 🌊 A visit to my mother in her beautiful port of Acapulco," she captioned the post. How does she stay so fit? Read on to see 5 ways Salas 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!

Salas loves to make mushroom omelets for a quick and easy meal. "Mushrooms are one of the few non-animal sources of vitamin D," says registered nutritionist Nicola Shubrook. "When they are grown, exposed to ultraviolet (UV) radiation, either from sunlight or a UV lamp, mushrooms increase their concentration of vitamin D. In fact, you can even do this at home by leaving mushrooms out on the counter in direct sunlight for 15-120 minutes; studies suggest this simple act may result in levels of vitamin D2 as high as 10mcg per 100g fresh weight."

Salas enjoys fresh seafood, especially ceviche and sushi. "Food is such an important part of our physical and emotional lives," says Beth Czerwony, RD. "If you are healthy and take some sensible precautions, go ahead and enjoy your favorite sushi roll or sashimi." 

Caprese salad with tomatoes and mozzarella is one of Salas' go-to snacks. "A single tomato can provide about 40% of the daily recommended minimum of vitamin C," says Cynthia Sass, MPH, RD. "What's more, tomatoes supply vitamin A, which supports immunity, vision, and skin health, and vitamin K, which is good for your bones. Tomatoes also provide potassium, a key nutrient for heart function, muscle contractions, and maintaining healthy blood pressure and fluid balance."

Salas makes sure to get enough protein in her diet through a variety of delicious dishes. "The recommended daily allowance (RDA) of protein is 46 grams per day for women and 56 grams for men. Depending on your body weight and activity level, that number may be higher, but a good rule of thumb is 0.36 grams of protein per pound of body weight," says Jayna Metalonis, registered dietitian at University Hospitals. "This is the minimum amount of protein you need just to maintain good health and does not consider other factors like metabolism, body composition and exercise – if you exercise regularly the recommended daily allowance of protein may be slightly more." 

Salas loves red wine, which experts say should be enjoyed in moderation. "Red wine, in moderation, has long been thought of as heart healthy," says the Mayo Clinic. "The alcohol and certain substances in red wine called antioxidants may help prevent coronary artery disease, the condition that leads to heart attacks. Any links between red wine and fewer heart attacks aren't completely understood. But part of the benefit might be that antioxidants in red wine may increase levels of high-density lipoprotein (HDL) cholesterol (the "good" cholesterol) and protect against cholesterol buildup."