The path to becoming a Registered Dietitian Nutritionist (RDN) is a multi-step process combining education and experience. The requirement for a graduate degree for new RDN candidates since 2024 has established a new timeline for aspiring professionals.
The Standard Timeline to Become an RDN
Becoming an RDN in the United States typically takes around 6 to 7 years.
Step 1: Complete a Bachelor's Degree (4 Years)
This involves earning an ACEND-accredited bachelor's degree, known as a Didactic Program in Dietetics (DPD). A standard program takes four years of full-time study, covering foundational and specialized science and nutrition courses. For those with an unrelated degree, a DPD certificate program can take 1 to 2 years.
Step 2: Earn a Master's Degree (1-2 Years)
Since January 1, 2024, a master's degree is required to take the RDN exam, adding 1-2 years. Coordinated Programs (CPD) combine bachelor's/master's and internships, potentially shortening the total time.
Step 3: Complete a Supervised Dietetic Internship (6-12 Months)
An ACEND-accredited internship is required, involving at least 1,000 hours of practical experience in clinical, community, and foodservice settings. Internships typically last 6 to 12 months.
Step 4: Pass the National Registration Exam
The final step is passing the CDR exam after meeting all other requirements to earn the RDN credential.
Comparison of Dietetics Degree Pathways
| Pathway | Duration | Key Requirements | Pros | Cons |
|---|---|---|---|---|
| Standard Path | ~6-7 years | Bachelor's Degree (DPD) + Master's Degree + Dietetic Internship | More time for specialized knowledge and exploration | Longer overall time commitment; multiple application processes |
| Coordinated Program (CPD) | ~5 years | Combined BS/MS + integrated internship | Accelerated timeline; single application process | Highly competitive; less flexibility in curriculum |
| 2nd Bachelor's Degree | ~6-7 years | First Degree (unrelated) + Second Degree (DPD) + Master's Degree + Dietetic Internship | No need for a certificate program; comprehensive re-training | Time-consuming and potentially costly |
| Certificate Program | ~4-5 years | First Degree (unrelated) + DPD Certificate + Master's Degree + Dietetic Internship | Faster than completing a second bachelor's | Must find a university offering a DPD certificate program |
| Master's with Integrated Internship | ~2-3 years (post-bachelor's) | Bachelor's Degree + Master's with integrated DI | Expedited graduate-level education | Extremely competitive; demanding coursework |
Other Considerations and Alternative Timelines
A DPD certificate program for career changers adds 1-2 years before graduate studies and internships. Part-time study extends the duration. Accelerated bachelor's programs can potentially shorten the initial degree time by a year but are intensive. Most states require licensure after the RDN exam. RDNs must complete 75 hours of continuing education every five years.
Conclusion
With the graduate degree requirement, becoming a Registered Dietitian Nutritionist now typically takes 6 to 7 years. This path involves specific educational steps, an internship, and passing the national exam.
