Ko So Young hits 40kg range for first time in 16 years

Actress Ko So Young has re-entered the 40kg weight range for the first time in 16 years. She revealed her weight management process, stating that rather than extreme short-term weight loss, it was the result of adjusting her eating habits and lifestyle patterns over approximately five months. However, this also serves as a point to consider that managing one's weight based on individual health status and physical conditions is more important than focusing solely on the number on the scale.

On the 25th, Ko So Young released a video titled 'Ko So Young's Miraculous Diet Secret: Entering the 40kg Range for the First Time in 16 Years Revealed' through her YouTube channel 'Ko So Young'. In the video, she showed the process of checking the results of the weight management she has been pursuing since last March, along with the lifestyle habits she has maintained.

On this day, Ko So Young stepped on the scale after removing everything, including her bracelets and microphone, to ensure an accurate weight measurement. Ahead of the measurement, she appeared nervous, asking, "Isn't 49.9kg basically 50kg? Are you really going to measure it?"

The measurement result was 49.2kg. This was the moment Ko So Young, who had previously revealed a weight of 51kg and stated her goal was to "draw the number '4' in my life once again," actually entered the 40kg range.

However, just before the weight measurement, she appeared to have restricted food and water intake to lower the number in the short term. Ko So Young said, "To be honest, I have been fasting since yesterday. I'm hungry," and mentioned that when she told her husband, Jang Dong-geon, that she planned to weigh herself the next day, he advised her not to even drink water, saying that weight decreases when you lose water weight.

While such methods can temporarily affect the number on the scale, they are far from the general principles of healthy weight loss. In particular, since excessive restriction of water intake can increase the risk of dehydration, weight management needs to consider sufficient nutrition, hydration, and muscle mass maintenance rather than just a simple figure.

The management method that Ko So Young actually maintained for a long period was closer to a change in lifestyle rather than extreme fasting. She said, "There must be sacrifice to achieve a goal," adding, "I have almost quit drinking. I canceled all my drinking appointments and even eliminated all my dinner appointments."

In particular, it is notable that she started by reducing the dinners and drinking sessions that naturally occur in social life. By changing the lifestyle pattern itself, which involves repeated eating out and drinking, she managed her intake.

The speed of weight loss was also a relatively long-term approach. Ko So Young explained, "Starting from March, I slowly lost 3 to 4kg," noting that losing weight too suddenly causes a loss of energy. This means she continuously adjusted her lifestyle patterns rather than attempting extreme weight loss in a short period.

The video also revealed her appearance before and after the weight loss. After checking the number on the scale, Ko So Young expressed satisfaction as she saw her face had become slimmer than before, and she stated her intention to continue her current lifestyle habits in the future.

Her goal did not end there. The new target weight Ko So Young presented is 47–49kg, specifically setting 47kg—her weight at the time of her marriage—as her next goal. Since she has been raising two children after marrying Jang Dong-geon in 2010, it is also necessary to consider that healthy management suited to her current physical condition is more important than simply returning to her past weight.

A noteworthy part of this reveal is that Ko So Young explained specifically what she gave up in her daily life rather than just the result of "losing a few kg." She reduced drinking sessions and dinner appointments and adjusted her lifestyle patterns for several months.

However, as celebrity weight loss cases can have a strong influence on the public, it is necessary to be cautious about accepting a specific weight as an absolute standard of beauty. This is because the appropriate range varies depending on height, body composition, muscle mass, age, and health status, even for the same weight.

Although Ko So Young presented entering the 40kg range as her goal through this video, the core of the actual change lay in steady lifestyle management rather than the number on the scale. This is why the significance lies in the process of reflecting on and managing her lifestyle habits over a long period, rather than the number '4' she confirmed again after 16 years.

Ko So Young married actor Jang Dong-geon in 2010 and has one son and one daughter. Along with her acting career, she communicates with the public by revealing her daily life, fashion, and lifestyle through YouTube.