There isn't a standalone "Registered Dietitian" degree. Registered Dietitians (RDs) obtain their credentials through a combination of education and supervised practice. The educational component is typically a bachelor's or master's degree in a related field, such as nutrition or dietetics, that is accredited by the Accreditation Council for Education in Nutrition and Dietetics (ACEND).
To find South Carolina colleges offering ACEND-accredited programs, you need to check the ACEND website directly. Search their database for accredited programs in South Carolina. You'll likely find programs at universities, rather than a specific "Registered Dietitian" degree. These programs will prepare you for the registration exam.