For the first time in 16 years!
2 hours ago
Actress Ko So Young has finally achieved the weight-loss goal she publicly set for herself a month ago, reaching the 40-kg range for the first time in 16 years.
However, the actress surprised viewers when she revealed the extreme last-minute measures she took to make sure the number on the scale started with a “4.”
On August 25, Ko So Young uploaded a new video to her YouTube channel titled, “Ko So Young Reveals Her Miracle Diet Method For Reaching The 40-KG Range For The First Time In 16 Years (Weight Reveal).” A month earlier, the actress had announced her personal challenge.
“I’m going to try to see a ‘4’ at the beginning of my weight again in my lifetime. If I lose about 2 kg (4.4 lbs) more, I’ll enter the 40-kg range.”
This time, she decided to step onto the scale on camera and reveal whether she had succeeded. Before weighing herself, the production team even suggested that she remove her microphone and rings before getting on the scale.
The result was 49.2 kg (108.5 lbs). Ko So Young had officially accomplished her goal of entering the 40-kg range for the first time in 16 years. The actress explained that the result was primarily the product of a gradual diet rather than rapid weight loss. Beginning in March, she lost approximately 3–4 kg (6.6–8.8 lbs) over five months.
She said one of her biggest changes was drastically reducing alcohol. Go So Young said she virtually stopped drinking and even eliminated both drinking gatherings and evening appointments from her schedule.
Rather than attempting to lose a large amount of weight rapidly, she deliberately took several months because sudden weight loss left her feeling drained. Even the production staff noticed the physical change, commenting that her face shape looked different compared to when she previously appeared on Hong Jin Kyung‘s YouTube content.
But Go So Young isn’t finished yet. Her ultimate target is reportedly 47 kg (103.6 lbs), approximately another 2 kg (4.4 lbs) below her current weight. There is a sentimental reason behind the specific number: Go So Young revealed that 47 kg (103.6 lbs) was approximately what she weighed when she got married.
However, after celebrating her 49.2-kg (108.5-lb) weigh-in, the actress made a surprising confession about how badly she wanted to ensure she hit her immediate goal.
“To be honest, I’ve been fasting since yesterday. I’m starving to death. I didn’t even drink water.””
She then revealed that she had even temporarily stopped drinking water before stepping onto the scale. While her overall 3–4 kg (6.6–8.8 lbs) loss occurred gradually across approximately five months, her decision to fast and restrict water immediately before the weigh-in was only a last-minute attempt to temporarily lower the number on the scale, rather than the method responsible for her overall weight loss.
At 49.2 kg (108.5 lbs), however, Go So Young ultimately achieved the milestone she had been chasing, and is now setting her sights on returning to her wedding-era weight of 47 kg (103.6 lbs).

