On January 15 episode of MBC's television show 'Sinsun', Kim Jong-kook shared his love for working out at the gym.
![Kim Jong-kook](https://img.sbs.co.kr/newimg/news/20210118/201512061_700.jpg)
Kim Jong-kook laughed and responded, "I have to eat at all times. I just can't let myself feel hungry."
Then, entertainer Seo Jang Hoon asked, "Your words are getting me curious. How much do you seriously work out?"
Kim Jong-kook answered, "Well, I eat to work out. So, I eat, eat and eat. I probably spend more time working out than you imagine."
![Kim Jong-kook](https://img.sbs.co.kr/newimg/news/20210118/201512063_700.jpg)
Kim Jong-kook said, "Yeah, it was my back day. I worked really hard on pumping my back muscles and I helped Son Heung-min with it."
He smiled and jokingly added, "He never picked up my calls after that day though."
![Kim Jong-kook](https://img.sbs.co.kr/newimg/news/20210118/201512062_700.jpg)
(SBS Star)