Effects of a “5 + 2” dietary management model on body composition and behavioral modification in Chinese children with obesity: a prospective, non-randomized controlled trial

IntroductionContinuous energy restriction may be associated with poor adherence and a risk of muscle mass loss in pediatric obesity management. This study evaluated the effects of a structured “5 + 2” dietary management model—cycling 5 weekdays of calorie-restricted diet with 2 weekend days of high-protein diet—supported by standardized supplements and professional supervision.MethodsIn this pr...