What happened?

Kim Min-ji, a former national sprinter known for her toned physique, said she was shocked to find her abs had disappeared. In a video posted to her YouTube channel on October 10, she pinched her side fat in front of a mirror and declared a 24-hour diet and abs challenge.

Why did her weight change?

According to Kim, she lost weight after an intestinal illness. After a trip to Taiwan, her appetite returned and she gained weight. She recalled that she weighed about 56 kg while filming Netflix's Single's Inferno Season 5, when her muscle mass was higher after an athletics competition, and about 54 kg after returning home.

What workout did she do?

At the gym she did lat pulldowns, Smith squats, cable pushdowns, leg presses and leg curls, followed by planks. She said planks in about 10 variations were the most effective for a quick weight-loss effect.

Did the challenge work?

She did not fully regain her visible abs by the end of the 24 hours, but said she looked slightly leaner than she had in the morning.

For international fans

Kim Min-ji is best known to international viewers as a cast member of Single's Inferno Season 5 on Netflix, where she drew attention for her athletic build. Her YouTube channel, which posts training and lifestyle videos, is the best place to follow her latest challenges.