You'd think that the models in the Sports Illustrated swimsuit edition would really watch what they eat before the photoshoot. Not so, says cover model Bar Refaeli. "They tell you 'you better not go on a diet before the shoot'. Girls tend to think, 'Oh my God, I have to be in swimwear, I have to look amazing'. They just say, 'You better not, girl!' And they just let you eat all the time during the photo shoot. They love that; they love their girls healthy."

But Refaeli doesn't get her fit body without some effort. Refaeli sticks to a healthy diet and she exercises regularly. She loves horseback riding and has been riding since she was just a little girl. Refaeli gets her kicking legs by practicing Krav Maga, an Israeli form of martial arts.

Need some fitness motivation? Check out Refaeli's gorgeous swimsuit photos for Sports Illustrated.