Megan Fox in Bathing Suit Poses With Machine Gun Kelly

Megan Fox is enjoying the beautiful sunshine on vacation with fiancé Machine Gun Kelly. The 36-year-old actress posted photos of herself wearing a bright pink bikini as she happily poses with the musician. How does she stay so fit? Read on to see 5 ways Fox 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!

1. She Enjoys a Clean Diet

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Fox eats a very healthy diet, and avoids processed carbohydrates. "I cut out all bread and those sort of carbohydrates. No crackers, no pretzels, no chips. Nothing unhealthy," she says. "The worst thing I put in my body is coffee, once a day. I don't have any cheat days. But if I did, it would be pizza or cake."

2. She Eats Almonds

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Almonds are one of Fox’s go-to foods for snacks and as part of meals. “Almonds are rich in nutrients that help protect the heart, including unsaturated fatty acids, phytosterols, magnesium, vitamin E, copper and manganese,” says registered nutritionist Nicola Shubrook. “Two research studies in 2012 and 2014 found that including almonds in your diet may reduce the risk of heart disease, specifically in overweight individuals. Further research has shown that almond consumption helps to reduce LDL cholesterol which may, in turn, help to reduce the risk of heart disease.”

3. She Does Circuit Training

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Fox exercises “really hard”, and incorporates weights, cardio, and circuit training into her workout routine. “Try getting in a 30-minute workout five or more days a week that raises your heart rate for the duration of the activity,” says clinical exercise physiologist Erik Van Iterson, PhD, MS. “Or try three, 10-minute workouts, five or more days a week.”

4. She Enjoys Japanese Food

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Fox loves Japanese food, widely considered one of the healthiest cuisines on the planet. “A study by the British Medical Journal found that those who stuck closer to the Japanese dietary guidelines – a diet high in grains and vegetables, with moderate amounts of animal products and soy but minimal dairy and fruit – had a reduced risk of dying early from heart disease or stroke,” says Shubrook. “As their diet is traditionally high in soy and fish this may also play a significant role in reduced risk of cardiovascular disease. The Japanese also have the lowest rates of obesity among men and women as well as long life expectancy.”

5. She Eats Plenty of Salmon

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Fox loves salmon, and incorporates the oily fish into her meals several times a week. “Oily fish plays an important role in dampening the effects of inflammation, which is key to helping manage a number of chronic diseases, including diabetes and cancer,” says registered nutritionist Jo Lewin. “Studies suggest that eating more oily fish like salmon could help lower levels of the markers that indicate inflammation.”