AKMU’s Lee Su-hyun has drawn renewed attention after publicly revealing that she lost 30 kg and recently sharing an update on social media. The key point is to treat the weight-loss figure disclosed on her YouTube channel in April and the everyday photos posted on September 2 as information from different points in time.
Key Changes
In a video on her YouTube channel in April 2026, Lee Su-hyun said that she had lost approximately 30 kg from her highest weight. She explained that she combined exercise with dietary management and received help from Lee Chan-hyuk and a coach.
The confirmed figure is “approximately 30 kg from her highest weight.”
On September 2, she posted everyday photos on Instagram with the message, “Goodbye summer!! Come slowly!” The photos were described as showing her wearing a floral blouse and jeans, as well as a yellow T-shirt and denim shorts.
Current Status
Reports in August about Lee Su-hyun’s appearance on Chimchakman’s interview show said that she had disclosed receiving a “prediabetes” result in a past blood test and had subsequently begun managing her health. Reports related to the same interview said that she stated her test results had returned to normal in a retest this year.
However, these details are based on her own statements quoted in media reports. They do not establish that she currently has prediabetes, and the retest results have not been independently confirmed through a medical report from a healthcare institution. Her appearance in photos is also an observation and does not prove her precise current weight or health status.
Impact
The renewed attention appears to have grown as her September 2 social media update and her earlier disclosure about losing weight received attention together. The changes that can be confirmed are the weight-loss figure she disclosed herself, her account of managing exercise and diet, and the fact that she posted a recent update.
By contrast, her current weight, BMI, body-fat percentage, and the medical appropriateness of her weight-loss methods have not been confirmed. Therefore, her weight-loss process should not be recommended as a general dieting method, nor should her health be assessed solely from publicly available photos.
Next Official Activity
Lee Su-hyun is active as part of the sibling duo AKMU with Lee Chan-hyuk. AKMU is scheduled to hold the “Paradise of Rumors” concert at KSPO DOME from October 9 to 11, 2026. This concert is the official activity schedule that can be confirmed following her recent update.
Source Check
- [Korea Economic Daily: “After a blood test showed she was on the verge of diabetes… AKMU’s Lee Su-hyun’s real reason for losing 30 kg”](https://www.hankyung.com/article/202608213693H) — Checked August 21, 2026
- [Money Today: “AKMU’s Lee Su-hyun successfully loses 30 kg”](https://www.mt.co.kr/amp/entertainment/2026/04/18/2026041813523637750) — Checked April 18, 2026
- [Sports Dong-A: “AKMU’s Lee Su-hyun, who lost 30 kg, shares a recent social media update”](https://v.daum.net/v/20260902163949666) — Checked September 2, 2026
- [Olympic Park: 2026 AKMU CONCERT ‘Paradise of Rumors’](https://www.ksponco.or.kr/olympicpark/eventInfo/eventInfoView.es?evtSeq=5147&mid=a20301010100) — Checked September 2, 2026