Registered Dietitians (RDs) or Registered Dietitian Nutritionists (RDNs) are food and nutrition experts who have met the following criteria and earned the RD or RDN credential:

Completed a minimum of a bachelor’s degree at a U.S. regionally accredited university or college or foreign equivalent, and coursework through an Accreditation Council for Education in Nutrition and Dietetics (ACEND) accredited Didactic Program in Dietetics (DPD) or Coordinated Program in Dietetics (CP).

Complete 1200 hours of supervised practice through an ACEND accredited Dietetic Internship, Coordinated Program in Dietetics or an Individualized Supervised Practice Pathway (ISPP) offered through an ACEND accredited program.

Passed a national examination administered by the Commission on Dietetic Registration (CDR). For more information regarding the examination, refer to CDR’s website at In order to maintain the credential, an RD or RDN must complete continuing professional educational requirements.

Registered Dietitian Nutritionist Exam

The internship helps prepare the interns for the CDR credentialing exam for Registered Dietitian Nutritionists with practice exams. Interns are required to successfully complete a mock Registered Dietitian Nutritionist exam as a requirement of the program.

Learn more about the Registered Dietitian Nutritionist exam

Visit the CDR website for more information on the different pathways to become eligible for the RD exam