Nichkhun’s Shocking Weight Gain: His Extreme Diet Revealed

2PM member Nichkhun has candidly shared his recent struggles with unexpected weight gain and the extreme diet routine he used to snap right back into shape. On the July 6, 2026, broadcast of SBS’s hit variety program But Seriously! (아니 근데 진짜!), the veteran Hallyu idol sat down with the hosting panel to discuss his recent lifestyle changes and intense physical upkeep.

2PM’s Nichkhun Admits He Was “Shocked” by Hidden Weight Gain / SBS

“I Looked Like a Completely Different Person”

During the show, host Tak Jae-hoon jokingly poked fun at the star, commenting, “I heard you got a little triggered recently after people said you gained some weight.” Co-host Lee Sang-min quickly jumped in to agree, asking, “I actually wanted to ask you that too. How did you end up looking so noticeably full-figured lately?”

Nichkhun laughed off the initial teasing but honestly admitted that he was equally startled by his own reflection:

“A video clip of me recently started trending on YouTube, and when I watched it, I literally looked like a completely different person compared to how I look right now. Earlier this year, my official work schedule was quite light, so I went back home to spend time with my family and ended up eating way too much. Watching myself back on television, I thought, ‘Wow, I really am getting older.’ I was completely shocked by my own appearance.”

Comedic panelist Lee Su-ji earned a massive wave of laughter from the studio crew by joking, “Oh, I actually saw that viral video myself! Watching you in that clip made me feel like you and I had suddenly become much closer in appearance.”

2PM’s Nichkhun Admits He Was “Shocked” by Hidden Weight Gain / SBS

Extreme 3-Day Prep for Japan Concerts

To prepare for his return to the live stage, Nichkhun revealed that he had to take urgent, drastic measures right before flying out for his international promotions. “We had a major concert scheduled in Japan recently, and to shed the weight quickly, I survived by eating only three total eggs a day for three days straight,” he confessed, highlighting the intense pressure idols face to stay in pristine condition.

Hearing about his extreme diet, host Boom pointed out that the 2PM members are famous in the music industry for their non-stop physical training. “Out of the entire group, the member who is officially the absolute king of self-care and strict discipline is definitely Jun. K,” Boom noted.

Jun. K, who also appeared on the episode, surprised the entire panel by opening up about his long-term nutrition habits:

“I have actively maintained a strict ‘one meal a day’ lifestyle for three full years now. One day, I deeply reflected on the exact reasons why our fans continue to give us so much love and support after all these years. That realization gave me a huge wake-up call about the absolute necessity of strict professional self-care.”

As 2PM approaches nearly two decades in the competitive K-pop landscape, the members’ honest behind-the-scenes stories continue to show the incredible hard work, discipline, and respect they hold for their craft and their global fandom, HOTTEST.