Associate Chief Physician and Associate Professor. Male, MD, responsible for clinical nutrition diagnosis and treatment. He specializes in the diagnosis and treatment of malnutrition in cancer patients, inflammatory bowel disease patients, and chronic kidney disease patients. He also specializes in medical nutritional weight loss for obesity patients, and other common malnutrition due to various diseases. From August 2002 to July 2009, he worked in the Department of Internal Medicine at Peking Union Medical College Hospital, serving successively as a Resident, Chief Resident, and Attending Physician. From July 2009 to April 2023, he served as an Attending Physician in the Clinical Nutrition Department, responsible for the diagnosis and treatment of malnutrition in outpatients, nutritional consultation for inpatients, and recommendations and adjustments for parenteral and enteral nutrition support. Since April 2023, he has been an Associate Chief Physician in the Clinical Nutrition Department.