Singer Soyou has drawn major attention after revealing her real weight loss journey, showing a striking before-and-after transformation that sparked online debate.
The former SISTAR member shared that her weight once reached 68kg, far higher than the public had known. After starting her diet, she dropped to 48kg at her lowest and currently maintains around 49kg.
Her honest confession is now going viral as fans react to the scale of the transformation and her realistic approach to dieting.
Soyou explains why her face changed after losing weight
Soyou addressed the plastic surgery rumors that followed her recent appearances.
She explained that the change in her facial line came from weight loss, not procedures.
“I heard people asking if I had jaw surgery or eye surgery,” she said. “But it’s just makeup for the eyes and over-lip for the lips. If people think I look prettier, I’ll take that as a compliment.”
She also admitted that she had previously hidden her highest weight because she felt embarrassed.
“I didn’t tell anyone I was 68kg because I was ashamed. When I saw that number after my trip to Sapporo, I was shocked and decided I had to lose weight,” she said.
Her workout routine focused on cardio and incline training
Soyou revealed a detailed routine that helped her reach 48kg.
Her main method was long cardio sessions rather than extreme dieting.
She walked and ran in intervals for about an hour, then used high-incline treadmill walking and lunges to burn more fat and reduce muscle mass.
Her diet focused on low-sugar meals, but she stressed that she still ate the foods she wanted in moderation instead of starving herself.
Fans worried about her getting too thin
When she first lost 10kg, fans told her to stop dieting during a live broadcast.
Soyou responded that she no longer wanted to lose more weight and that her busy schedule naturally caused additional weight loss.
Even people around her expressed concern. She recalled being told she looked too thin and should eat more.
From a strong, muscular image to a “bone-thin” silhouette
Soyou was once known for her healthy and muscular body.
After losing 20kg, her figure changed completely, and her bikini photos showing a much slimmer frame became a hot topic online.
The transformation has fueled discussions about body image, healthy dieting, and how drastically weight loss can change facial structure.
Soyou shares her full body management routine on YouTube
Soyou recently uploaded a video on her YouTube channel where she revealed the full process behind her transformation, including workouts, diet, and daily care.
With her honest story and visible results, the singer is once again at the center of public attention, this time for her transparency and discipline rather than just her appearance.
Editor’s Insight
Soyou’s transparency about her 20kg weight loss is a breath of fresh air in an industry often clouded by ‘secret’ procedures. By openly discussing her peak weight of 68kg and the specific incline-treadmill routines she used, she shifts the narrative from ‘unattainable perfection’ to ‘disciplined reality.’ Her direct address of plastic surgery rumors—linking facial changes to fat loss and makeup techniques—serves as a crucial case study in how drastic weight fluctuations can alter a person’s ‘facial line.’ For digital media, this story isn’t just about a diet; it’s about the evolving relationship between K-pop idols and body image transparency in 2026