Oprah's Great Weight Debate

Oprah Winfrey's weight struggles have been well-documented -- both on her talk show and in the press. But there's one aspect to the debate she's never truly investigated ... until now.

In Sunday's episode of Oprah's Next Chapter, the TV titan sits down with New Jersey Governor Chris Christie and finds out if being overweight is tougher for men or women.

And his answer might surprise you! Check out this ETonline exclusive sneak peek from Sunday's episode to learn his answer!

Oprah's Next Chapter airs January 15 at 9 p.m. on OWN.