North Korean leader Kim Jong Un appears to have lost some weight after years of rather substantial weight gain, according to North Korea watchers and an NK News analysis of state media.

South Korea’s National Intelligence Service, the country’s spy agency, reported in November that Kim weighed just over 300 pounds.

The South Korean spy service reported that Kim weighed under 200 pounds when he took power about a decade ago.

Kim is believed to be about 5 foot 7 inches tall, so at more than 300 pounds, the North Korean leader, assessed to be in his mid-30s, would be considered severely obese and potentially at risk for various health problems.

Last April, during an unexplained absence, there was rampant speculation that Kim was in “grave danger” after an operation, that he was dead, in a coma, or brain-dead.