CDR DTR

It certifies that you can work as a nutrition and dietetics technician alongside an RDN: screening clients, gathering intake and anthropometric data, implementing and monitoring care plans, and supporting foodservice operations. It is a distinct credential from the RDN and does not authorize independent nutrition diagnosis or medical nutrition therapy prescription.

Multiple-choice, computer-delivered at approved testing centers or through live remote proctoring. All items are single best answer. The current item count, appointment length, and any break policy are published by the Commission on Dietetic Registration, so verify them on the official site before you schedule.

Both change periodically, and this page does not quote them. Check the CDR website and the current NDTR examination handbook for the appointment length, current fee, and what the fee includes. Budget extra time beyond the appointment for check-in and identification verification.

The difficulty lies in application, not trivia. Most candidates find basic nutrition comfortable but struggle with foodservice math, staffing and budgeting calculations, and nutrition care process sequencing. If you can do calculations quickly and reason through scenarios rather than recall definitions, you are well positioned.

Retakes exist but are governed by waiting periods, attempt limits, and full re-fees. These rules are set by CDR and are revised from time to time, so confirm the current retake and reapplication policy directly on the official site rather than relying on secondhand accounts.

Start with food and nutrition sciences, because medical nutrition therapy and foodservice calculations both rest on nutrient function, digestion, and metabolism. Then take nutrition care for individuals and groups, since it is the largest application area. Finish with foodservice systems and management, which are calculation- and terminology-heavy but faster to learn.

Three recurring places: unit conversions and yield or portion math; confusing the steps of the nutrition care process or mixing up who performs which step; and management terminology such as types of budgets, staffing measures, and quality improvement language. Each is learnable in a focused week of drills.

Yes, and they are usually embedded in a scenario. Expect conversions, portion and yield costs, production forecasting, and nutrient or energy needs framed as word problems. Practice with a calculator you are allowed to use and work on paper so the setup, not just the answer, becomes automatic.

It depends on how recently you completed your dietetic technician program and how strong your math is. Most candidates do best with several weeks of spaced study plus full-length practice sets under timed conditions. Diagnose weak areas with a baseline practice test before building a schedule.

No. This is an independent study resource with no affiliation with or endorsement by the Commission on Dietetic Registration. For eligibility, application procedures, official score reporting, and any policy question, use CDR's own materials exclusively.