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Home熱議討論ATEEZ's Choi San's Body Transformation Goes Viral
熱議討論

ATEEZ's Choi San's Body Transformation Goes Viral

泡菜鄉民8/20/2026 1 min read
theqoo
Source: theqoo
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Source: theqoo
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Source: theqoo
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Source: theqoo
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Source: theqoo

Here are translated comments from Korean netizens:

1. Wow, I didn't even realize it was the same person!
2. How did he do it???!!!
3. The muscle gain suits the group's concept better. ATEEZ has many masculine, wild-style songs.

4. So this is a level that can be achieved through effort.
5. He looks much better with the added muscle.
6. He looks like a completely different person.

泡菜鄉民

泡菜鄉民

欸欸~我跟你說韓國娛樂啊...

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7. He truly went from a boy to a man.
8. Ah… I regret not knowing what he looked like when he was thin.
9. He used to be so skinny ㄷㄷㄷ

10. By the way, he didn't suddenly get buff; he gradually built muscle over eight years as he grew. ㅋㅋㅋ
11. Wow, he must have worked incredibly hard.
12. His frame is naturally slender, so his muscle gain is even more impressive.

13. He put in so much effort.
14. It's like a complete transformation.
15. Wow, that's amazing, such a huge change.

16. I also think his expression changed a lot; that confidence probably radiates from his physique.
17. Wow, he really worked hard. I want to exercise now too.
18. Some people suit muscle gain, some don't, but it really suits him.

19. He's a late bloomer; his bones and height grew as he matured, and continuous exercise helped him achieve his current physique.
As an idol, he primarily trains large muscle groups for dance lines, so he doesn't specifically train arm muscles.
20. Wow, that's incredible. He must have worked hard all this time; it's truly admirable.
21. However, I recently saw him in person wearing a tank top, and he was thinner and more slender than I expected, which surprised me. He looks very muscular on screen.

22. ㄷㄷ He's truly amazing. I'm most excited for when Choi San goes to the military.

Currently, he's only trained his latissimus dorsi and shoulder width. If he goes to the military, eats well, sleeps well, and only exercises, his chest will become even thicker front to back.
23. Wow, he actually had that kind of period.
24. Wow, that's crazy, he did so well.

25. It's not natural; he worked hard to achieve that, which feels really cool.
26. The difference is huge; the muscle gain was a stroke of genius, it's incredible.
27. In the second photo, he looks like a high school student. He looks much better now.

28. He's a late bloomer. Compared to old videos, in addition to muscle, he's definitely grown taller. In his debut days, there was a height difference with a certain member, but now they're similar.
29. Wow, it's like he's a different person.
30. Because his face shape is more angular, getting muscular suits him better.

31. Even now, watching videos, I think he's muscular but still lean. Wow, he actually had a period where he was skin and bones; it's a human victory.
32. Wow, he looks healthy inside and out.
33. However, because his face shape is more angular, getting muscular suits him better, full of masculine charm.

34. He looks really good after gaining muscle.
35. How did he train his shoulders? Were his bones not fully developed yet?
36. Perhaps because of that, even with muscle gain now, his waist is still very thin. His frame might be naturally slender ㅋㅋㅋ But his shoulders were quite broad even before gaining muscle.

37. I thought it was another member standing next to him ㅋㅋㅋㅋ
38. Completely different person…? So amazing.
39. The muscle gain is one thing, but the debut photos also show how young he was ㅋㅋㅋㅋ

40. Wow, he looks so much better after gaining muscle.
41. I thought it was another member, but it's his own past.
42. His beautiful smile has been consistent since childhood.

43. How did he do it? His shoulders are so well-trained; he must have worked out incredibly hard.
44. I truly couldn't recognize him in the last photo.
45. Well done, well done. Some people suit being thin, but he doesn't. This is his best state.

46. He absolutely must maintain that muscle.
47. It feels like he went from 0 to 100 in presence.
48. Wow, he really made a great choice…

49. Wasn't he really like a paper doll…?
50. He works out incredibly hard.
51. It's truly a stroke of genius, the muscle gain ㅋㅋㅋㅋㅋㅋㅋㅋ

52. Isn't that amazing???
53. ??? Who are you…?
54. That's fantastic, he really put in so much effort, so cool.

55. The muscle gain suits him so well, it feels like it's natural for him.
56. Thank you… thank you….
57. He put in immense effort.

58. Black hair, tanned skin, and muscle gain really suit him perfectly.
59. He worked hard to achieve that; it's admirable.
60. I really got to know ATEEZ around early 2020, and by then, San no longer had the appearance from the pre-muscle gain photos…ㅋㅋㅋㅋ How long ago was that…?ㅋㅋㅋㅋㅋ The first time I saw a 'Say My Name' performance live, his stage presence was great and he was so cool. All of ATEEZ's stages are cool, but San is my friend's bias, so I watched him more closely and thought he was really cool ㅋㅋㅋㅋ

61. He looks like a different person.
62. Wow, he's transformed.
63. He wanted a physique suitable for his dance lines, so he slowly gained muscle over two years from a very thin state.

He said that at his most extreme, he ate six meals a day, sometimes crying and throwing up while eating.

Now, as an idol, he doesn't specifically train his arms or abs so that his arms don't look short when dancing.

He gains or loses weight according to the concept, so his arms are less bulky for refreshing songs and more muscular for powerful songs ㅋㅋㅋ He only trains more when there's an exposure concept. He's truly dedicated to his idol career and changed through hard work… so please don't say anything bad. I'm a loyal fan, and I'm happy and surprised to see this trending, so I wrote this.

64. Wow… he looks like a different person.
65. Can even his face change like that??? The size of his jawbone seems different.

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