'Star Wars: The Force Awakens': Mark Hamill Lost 50 Pounds to Be Luke Again

"I'm on the 'if it tastes good, don't eat it' diet," he joked.

In fact, Hamill tells Rolling Stone he lost 50 pounds to be Luke again.

"Look at what I'm eating now instead of potato chips and bagels," he told the magazine, showing the reporter an array of fruits and veggies.

He added, "I'm on the 'if it tastes good, don't eat it' diet."

As for the plot and the mystery surrounding Luke in "The Force Awakens," Hamill said he has "this massive, oppressive sword-of-Damocles NDA hanging over my head."

But Hamill is very happy to see the return of Luke, especially after years of thinking the character's arc was finished.