At the September 21 press conference for tvN's 'Eat Sleep Eat,' DIA/IOI's Jung Chae Yeon fretted over her weight gain after filming for the show.

The idol said, "After filming, I actually gained 2 kg (~4.4 lbs). I quickly lost the weight after returning to Korea." 

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Jung Chae Yeon continued, "I deliciously ate all the food that uncle (Chef Baek Jong Won) cooked for me, and I helped him out with Onew, and just enjoyed myself." 

Meanwhile, tvN's 'Eat Sleep Eat' chronicles Baek Jong Won, Onew, and Jung Chae Yeon's travels around Southeast Asia and their missions of showcasing recipes sourced entirely from local ingredients. The show will air this coming September 23!