Idol group Super Junior's Shindong discussed about the worries of the yo-yo effect.

On yesterday's episode of KBS' "Hello" featuring Shindong as a guest. He shared, "I am experiencing an extreme case of yo-yo effect. Many are surprised as they see me each time."

He continued, "After a certain point, people started asking me if I'm either trying to gain or lose weight. I am currently losing weight now."

Shindong has also continuously been complaining about the yo-yo effect through his twitter and multiple broadcasts.

Fans and viewers that saw the show shared their thoughts on Shindong and his yo-yo effect stating, "You should lose weight slowly~," "If you try losing it all at once then you will suffer from yo-yo effect," and "Diet is a lifetime struggle."