
Actor Moon Sang-min (25) revealed the secret to losing 26kg during his school days.
Recently, a video featuring Moon Sang-min appeared on the YouTube channel 'Daily Seven' in the segment 'Boo Seung-kwan's Bibidi Babidi Boo'. Moon Sang-min shared various stories with group Seventeen's Seungkwan (Boo Seung-kwan), whom he became close with at a badminton gathering.
In the video, Moon Sang-min confessed to having once weighed nearly 96kg. He said, “I wanted to become a model, so I lost weight from 95-96kg to 69-70kg during high school.”
The secret to his diet was two things: boxing and detox juice. Moon Sang-min stated, “I drank cabbage juice that my mother made instead of dinner,” adding, “That’s how I lost weight.”

Moon Sang-min gained recognition through tvN's 'Shuroop' (2022) and recently starred as Lee Yeol in KBS2's 'My Dear Thief', establishing himself as a 'Romantic Comedy Prince'. With his tall stature of 191cm, broad shoulders, and slim figure, he has earned the nickname 'Moon Jjak-nam' (a man with a large and sturdy image due to his height and broad shoulders). He is also reaching global audiences through the Netflix film 'Pavan'.
We looked into the diet secrets of the trending actor Moon Sang-min. Boxing is a high-intensity workout that burns a lot of calories, while cabbage juice is a low-calorie detox drink that provides satiety, making it effective for weight loss.

The Weight Loss Benefits of Boxing
Boxing is a high-intensity interval training (HIIT) that burns 600-800kcal in an hour and effectively reduces body fat, especially abdominal fat, by using all major muscle groups. It improves endurance and agility, helping to create a sustainable exercise habit, and its stress-relieving effects aid in maintaining weight loss. As a full-body workout, it can increase muscle mass and metabolic rate. It is recommended to start with 30-40 minute sessions and gradually increase the intensity, practicing 3-4 times a week.

The Weight Loss Benefits of Cabbage Juice
One cup of cabbage juice contains about 22kcal, making it low in calories and rich in dietary fiber, which helps maintain satiety and prevents overeating. Vitamin C, antioxidants, and glucosinolates aid in liver detoxification, digestion, and gut health, making it favorable for weight management. Especially for those like Moon Sang-min, drinking cabbage juice as a dinner substitute can reduce calorie intake and lead to rapid weight loss. Blend cabbage with apples, tomatoes, carrots, and water for a smooth drink. Steaming the cabbage before blending can reduce stomach discomfort and increase satiety.
Points to Note
Boxing carries a risk of injury, so beginners should learn proper techniques under the guidance of a professional coach and avoid excessive intensity to prevent fatigue accumulation. Additionally, substituting cabbage juice for dinner can lead to nutritional imbalances, muscle loss, and dizziness due to a lack of protein, fats, and carbohydrates, so it should be limited to a short term (within a week) and supplemented with multivitamins. Those with thyroid issues or irritable bowel syndrome should be cautious of the side effects of cabbage's goitrogens (hypothyroidism, bloating, diarrhea).
The safe rate of weight loss is 0.5-1kg per week, and losing more than 10kg in a month poses significant health risks such as muscle loss, metabolic slowdown, and rebound weight gain. For sustainability, it is important to maintain a balanced diet with protein, whole grains, and strength training, along with adequate hydration. If there are any health conditions, consult a doctor before proceeding.