Red Velvet Joy’s “Extreme” Body Transformation Triggers Heated Weight Loss Debate
Red Velvet Joy‘s noticeable weight loss ever since last year has often become a hot topic.

This time, it has sparked a heated debate online about body image.
Known for her confidence and hot body, Joy’s “transformation” has been described as “extreme” by some fans on X (formerly Twitter), who speculate that her strict diet and management routines may have intensified in recent months.
Red Velvet’s Joy was already slim, but over the past few months she’s become extremely thin… I heard she naturally gains weight easily, so she usually manages her body strictly, but it seems like she lost even more after starting a blood sugar diet?
— Fan via X (formerly Twitter)
레드벨벳 조이 원래도 말랐었는데 몇 달 전부터 완전 뼈말라 됐다…살 잘 찌는 체질이라 평소에도 관리 빡세게 한다는데 혈당 다이어트 시작하고 더 빠진듯? pic.twitter.com/GBlNHWpT52
— 이시하 (@edgyIsiha) January 28, 2026
The change in body proportions inevitably sparked a lot of conversation related to current trendy weight loss drugs.
It’s not that Joy confirmed this, but ever since Wegovy and Mounjaro came out, a lot of female idols suddenly appear much thinner. Even members who usually maintained a moderate body because it didn’t slim down easily are now showing up extremely thin… Please, everyone, don’t starve yourselves… Eat what you want and take care of your health.
— Fan via X (formerly Twitter)
조이가 맞았다는 건 아닌데 위고비 마운자로 나온 이후로
여돌들 갑자기 살 쫙 빼서 나오는 멤버들 많아짐
매번 안빠져서 적당한 몸 유지하고 나오던 멤버들도
갑자기 뼈말라돼서 나옴…
제발 다들 뼈말라되지마… 먹고싶은 거 먹ㄱㅎ
건강 챙겨 https://t.co/mxd6i0zFVo— 오타쿠 (@otaku3310025473) January 28, 2026
However, many condemned such conversations that focus so heavily on the tiniest details regarding female idols’ bodies and weight.
여자연예인 몸 나노단위로 뜯어서 평가하고 이걸 했니 뭘 했니 하는 것 좀 그만하면 안되나요 인스타에서 언니 몸 가지고 설왕설래하는 것도 보기 역겨워 죽겠는데 트위터에서까지 이러셔야 하나요? 보기 힘든 인용이 너무 많아서 트윗 씁니다 https://t.co/hO41aA68A3
— 멍… (@fromlovewithjoy) January 28, 2026
Can people please stop analyzing and judging female celebrities’ bodies down to the tiniest detail: what they did, what they didn’t do? It’s already disgusting to see people debating her body on Instagram, and now it’s happening on Twitter too. There are too many upsetting quotes, so I’m posting this tweet.
— Fan via X (formerly Twitter)
아이시팔 진심 어쩌라고요 내눈앞에이런글뜰때마다분노가차오름 혈당다이어트정보글도아니고 걍 여연 몸매보라는글이잖아 유튜브인스타에서 다 위고비다 마운자로다 지랄하는것도 꼴보기싫은데 트윗내려라 시발 https://t.co/80XLfv3vLU
— 녕 (@dong_koyakki_) January 28, 2026
F*ck, what am I supposed to do? Every time I see posts like this, I get furious. It’s not even a post about blood sugar diet tips, it’s just about critiquing a female celebrity’s body. I hate seeing people on YouTube and Instagram freak out over Wegovy and Mounjaro. Just take the post down, damn it.
— Fan via X (formerly Twitter)
십알 이게 다 유튜버 개같은 것들이
다 조이 체형가지고 최악의 코디 ㅇㅈㄹ해서 그럼 https://t.co/hKp8Arqq59— 폭뽀얌 (@ssolban_k) January 28, 2026
Damn it. This was all because of stupid YouTubers acting like dogs making a fuss about Joy’s outfits because of her body type.
— Fan via X (formerly Twitter)