The actress and tvN MC opened up about intentionally gaining 6kg for health reasons, weeks after announcing her remarriage in early July 2026.

Oh Yun-a deliberately gained 6kg after her body broke down from being underweight. She has no plans to lose it.
The actress currently hosts tvN's 시간관찰자: 더 시크릿 (Time Observer: The Secret). She shared the details in a YouTube video posted July 24 on her channel Oh!윤아, alongside fellow actress Park Se-mi.
"I intentionally gained weight because it was so difficult," she said. Eye twitching. The onset of chronic conditions. She has bilateral shoulder dislocation in both arms, and when she lost weight and stopped exercising, the lack of supporting muscle made her condition deteriorate sharply. The solution was protein-focused meals paired with consistent exercise. She's now in good health. The weight, though, hasn't budged. "Now my weight doesn't decrease," she said flatly.
When she told the crew "I'm not thin at all — I'm normal," they apparently called it an outrageous statement (the headline flags it as 망언, a Korean term for a jaw-dropping remark).
The candid health talk comes weeks after a significant personal update. On July 3, Oh Yun-a announced through her YouTube channel that she had remarried a non-celebrity man. She divorced in 2015 and has since raised her son Song Min (born 2007), who has developmental disabilities, on her own. Her earlier habit of barely eating before shoots stands in sharp contrast to her current protein-and-exercise routine.
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