On February 23 episode of tvN's television show 'On & Off', CHUNG HA was seen spending time with CHAEYEON and MINA.

She continued, "It honestly broke my heart to see you on such an extreme diet back then."
CHAEYEON also commented, "Same. It hurt me to hear you ask, 'What does that taste like?' when I was eating something."

She went on, "At that time, I didn't chew anything. There were times when I only drank sparkling water for like two weeks. It was crazy."
Then, MINA said she felt too dizzy from the diet, "Yes, I may look better on camera, but I wasn't happy. I feel much happier now."

She resumed, "From some point, you start to feel like, 'Do I really have to go this extreme?', 'What do I gain from doing all this?' and so on.'"

(SBS Star)