Ha Tae-keung, a member of the parliamentary intelligence committee, told reporters that for the past four months, the North Korean leader had been "on a diet" but is healthy.
"Recently [Kim] lost 10-20 kilograms and continues to be engaged in usual governing activities", Ha cited an NIS briefing.
In this Sept. 19, 2018, file photo, Kim Yo Jong, right, sister of North Korean leader Kim Jong Un, helps Kim sign joint statement following the summit with South Korean President Moon Jae-in at the Paekhwawon State Guesthouse in Pyongyang, North Korea. Kim's prolonged public absence has led to rumors of ill health and worries about how it could influence the future of what one analyst calls Northeast Asia's "Achilles' heel," a reference to the North's belligerence and unpredictable nature.
© AP Photo
The South Korean newspaper The Chosun Ilbo had previously reported that Kim was 170 centimetres (5'5 feet) tall and weighed 140 kilograms.
The state-run North Korean media recently revealed that the nation's leader had lost weight because he was working for the good of the country. At the same time, multiple foreign media outlets suggested the weight loss experienced by Kim might actually be a sign of major health problems.