Seoul is moving against the national tide on obesity, with city officials crediting a popular health app and expanding community fitness services helping residents become healthier even as obesity rates continue to rise across the country. The Seoul Metropolitan Government said Tuesday that the city's adult obesity rate fell to 30.2 percent in 2025 from 31.0 percent a year earlier, marking the largest decline among the nation's 17 cities and provinces. The findings were based on the Korea Disease Control and Prevention Agency's Community Health Survey. The city also recorded the country's highest rates for walking, healthy lifestyle practices and efforts to manage body weight, according to the survey. Officials said 69.0 percent of Seoul residents met the recommended walking target, compared with the national average of 49.2 percent. The city's healthy lifestyle practice rate reached 54.3 percent, while 74.5 percent of residents said they had tried to control their weight during the past year. Seoul said the improvements reflect expanded investments in personalized health programs, includi