During the episode, Seolhyun made a confession regarding her eating and dieting habits.�When asked how she maintains her figure, she responded, "I exercise as much as I eat." However,�Kang Ho Dong�reacted by saying that he had heard of a specific diet that only Seolhyun follows. To this comment, Seolhyun revealed, "That 'Seolhyun Diet' on the Internet is a lie."

The famous 'Seolhyun Diet' floating around online consists of a Greek yogurt that contains sweet potatoes, chicken breast, eggs, and nuts. The diet allegedly also does not include exercise.

For more of Seolhyun's diet story on 'Knowing Brother', make sure to tune in on June 2 at 9 PM KST on JTBC!