The life of a kdrama star may seem charmed but there is a downside to it. Maintaining those long lean frames and sharp cheekbones means you always have to watch what you eat and how much you exercise. And that's true for both actresses and actors.

However, some actors seem to have more sensible plans than others.

For example, So Ji Sub, the star of "The Master's Sun," knows that he gains weight quickly, so he avoids certain foods and works out.

"Exercise is important, so I wake up at a set time," said the actor. "I regularly exercise two to three hours daily. If I break this pattern for even a day, I gain weight."

To read the article, visit kdramastars.com.