The Clinical & Translational Bionutrition Core at UCSF provides comprehensive nutrition services for clinical research, including research diet development, nutrition screening, and participant education. Led by research dietitian Cewin Chao, the core offers support in creating individualized diets while adhering to research protocols and ensures the reliability of nutritional data. This initiative is funded by grant UL1 RR24131 from the National Center for Research Resources (NCRR) and the NIH Roadmap for Medical Research.