1 Principles of Dietetics (nutrition science, food science)25%
2 Nutrition Care for Individuals and Groups40%
3 Management of Food and Nutrition Programs and Services21%
4 Foodservice Systems Management14%
Exam Details
Question TypesMultiple Choice (computer-adaptive)
FormatComputer-adaptive at Pearson VUE test centers
Online ProctoringNot available
ID RequirementsGovernment-issued photo ID required. Name on ID must match registration exactly.
RenewalRequired -- RDN and NDTR credentials must be renewed every 5 years by earning 75 CPEUs (Continuing Professional Education Units). Renewal managed through CDR at cdrnet.org.
Retake Policy45-day waiting period between failed attempts. Maximum 5 total attempts; after exhausting attempts, CDR re-evaluation is required before further testing is permitted.