Why Jennifer Lopez Went on Vegan Program

Jennifer Lopez is a triple threat - singer, dancer and actress - and her toned body is the envy of women who are half her age.

The 44-year-old "First Love" singer has said she eats everything in moderation and doesn't do weird diets but, in an interview with "Good Morning America's" Michael Strahan, she revealed that she briefly went vegan with the past new year.

"I said, 'You know, I'm going to start to change how I eat.' … So I went on this 22-day vegan program," the "American Idol" judge said, adding that she put "the whole family on it."

"Everybody in the house had to do it," she said.

Lynda Lopez, her sister, agreed.

"She said, 'We're doing it,'" Lynda Lopez said. "It was delicious."

Jennifer Lopez said as children the sisters often ate rice and beans, and fried pork chops.

"Every day, every day," added her sister.

"My mom and my grandmother was like, 'This is healthy food,' and we loved it," Jennifer Lopez said. "We didn't have a lot of vegetables or salads or greens or fruits or things like that. It was a whole different culture and that's what happens - it passes down."

Lopez's new album, "A.K.A.," will be released June 17.

Watch the full interview with Jennifer Lopez Thursday on "GMA."