Director of the Department of Clinical Nutrition, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Chief Physician, Doctor of Medicine. Specializes in nutritional therapy for critically ill patients in clinical disciplines, individualized nutritional diagnosis and nutritional support for tumors, and comprehensive nutritional intervention for obesity and its chronic diseases. Professional direction: Nutritional diagnosis and treatment of benign and malignant tumors in adults. Utilizes multiple methods including individualized dietary guidance, enteral nutrition, and parenteral nutrition to improve the nutritional status of tumor patients during chemotherapy or radiotherapy, alleviate the toxic side effects of chemotherapy or radiotherapy, reduce the occurrence of cachexia in patients with advanced tumors, prevent weight loss, and enhance the body's antioxidant capacity and immune function.