Agata Sieramska in Bathing Suit Hits the Beach

Polish influencer Agata Sieramska has a work hard, play hard mentality when it comes to her health, nutrition, beauty, and fitness. The girlfriend of Juventus soccer star Arkadiusz Milik has an incredibly toned, gym-honed physique—and judging by her many social media workout videos and meal suggestions, she puts the effort in every day. Sieramska posted a series of photos of herself looking stunning in a gold bikini as she canoodled at the beach with Milik. How does she stay so fit? Read on to see 5 ways Sieramska 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!

Sieramska loves poached eggs, adding them to avocado toast or enjoying them on top of salads. "Eggs are a good source of protein (both whites/yolk). They also contain heart-healthy unsaturated fats and are a great source of important nutrients, such as vitamin B6, B12 and vitamin D," says Kurt Hong, MD, an internal medicine specialist at Keck Medicine of USC.

Sieramska is extremely focused on ab workouts, frequently using free weights (and the results speak for themselves). "Any exercise that involves the use of your stomach muscles and back muscles in a coordinated way counts as a core exercise," says the Mayo Clinic. "For example, using free weights while keeping your core stable trains and strengthens many of your muscles, including your core muscles."

Sieramska enjoys healthy carbohydrates in moderate portions, especially rice and vegetables. "Being naturally gluten free, rice is a valuable option for those with coeliac disease or non-coeliac gluten sensitivity," says registered nutritionist Kerry Torrens. "The brown, wholegrain variety is especially useful because it supplies insoluble fiber, which promotes digestive function and 'fuels' the beneficial gut bacteria which are so important for health."

Lifting weights is one of the core parts of Sieramska's training routine. One study from Iowa State University found that lifting weights for less than an hour a week could resist the risk of stroke or heart attack by 40-70%. "People may think they need to spend a lot of time lifting weights, but just two sets of bench presses that take less than 5 minutes could be effective," says DC (Duck-chul) Lee, associate professor of kinesiology.

One look at Sieramska's social media shows she eats a lot of fish and shellfish. "Fish is filled with omega-3 fatty acids and vitamins such as D and B2 (riboflavin)," says the Washington State Department of Health. "Fish is rich in calcium and phosphorus and a great source of minerals, such as iron, zinc, iodine, magnesium, and potassium. The American Heart Association recommends eating fish at least two times per week as part of a healthy diet. Fish is packed with protein, vitamins, and nutrients that can lower blood pressure and help reduce the risk of a heart attack or stroke."