How Long Does It Take to Become a Dietitian?
Quick Answer
6–8 years after high school. This includes a bachelor's degree (4 years), a master's degree (2 years, now required), a dietetic internship (8–24 months), and the RD exam.
Typical Duration
Quick Answer
Becoming a Registered Dietitian Nutritionist (RDN) takes 6–8 years after high school. The pathway includes a bachelor's degree, a master's degree (required since January 2024), a supervised dietetic internship of 1,000+ hours, and passing the Commission on Dietetic Registration (CDR) exam. The master's degree requirement was introduced by the Accreditation Council for Education in Nutrition and Dietetics (ACEND) and applies to all new RDN candidates.
Timeline Breakdown
| Step | Duration | Running Total |
|---|---|---|
| Bachelor's degree (DPD coursework) | 4 years | 4 years |
| Master's degree in nutrition or related field | 1.5–2 years | 5.5–6 years |
| Dietetic internship (supervised practice) | 8–24 months | 6–8 years |
| Study for and pass the RDN exam | 1–3 months | 6–8 years |
| State licensure (where required) | 2–4 weeks | 6–8 years |
Some programs combine the master's degree and internship into a single coordinated program, reducing the total timeline.
Step-by-Step Pathway
1. Bachelor's Degree with Didactic Program in Dietetics (4 Years)
You need a bachelor's degree from a regionally accredited university that includes an ACEND-accredited Didactic Program in Dietetics (DPD). Key coursework includes:
- Human anatomy and physiology
- Organic and biochemistry
- Medical nutrition therapy
- Food science and food service management
- Community and public health nutrition
- Statistics and research methods
Your major can be nutrition, dietetics, food science, or a related field, as long as it includes all DPD requirements.
2. Master's Degree (1.5–2 Years)
As of January 1, 2024, all new RDN candidates must hold a master's degree. This can be in nutrition, dietetics, public health, or a related field. Many universities now offer combined programs.
| Program Type | Duration | Notes |
|---|---|---|
| Standalone master's (after DPD) | 1.5–2 years | Apply to internship separately |
| Combined master's + internship | 2–3 years | Includes supervised practice |
| Coordinated Program (CP) | 2–3 years | Bachelor's + master's + internship in one |
3. Dietetic Internship (8–24 Months)
The supervised practice component requires a minimum of 1,000 hours of supervised practice in clinical, community, and food service settings. Internship placements are competitive and matched through DICAS (Dietetic Internship Centralized Application Services). Match rates hover around 50–60%, so apply to multiple programs.
4. RDN Exam (1–3 Months)
After completing your internship, you take the CDR Registration Examination — a computer-adaptive test of approximately 125 questions. The first-time pass rate is about 80%, and results are immediate. The exam costs $200.
Dietitian vs Nutritionist
| Registered Dietitian (RDN) | Nutritionist | |
|---|---|---|
| Education required | Master's degree + internship | Varies widely by state |
| Credential | Legally protected title | Often unregulated |
| Can work in clinical settings | Yes | Limited |
| Insurance reimbursement | Yes | Rarely |
| Median salary | $70,000–$80,000 | $45,000–$60,000 |
Tips for Aspiring Dietitians
- Choose a combined master's/internship program. These coordinated programs save time and eliminate the competitive internship matching process.
- Maintain a high GPA. A GPA of 3.5+ significantly improves your chances of matching to a dietetic internship.
- Gain volunteer experience early. Volunteer at food banks, hospitals, or community health programs to strengthen your internship application.
- Join the Academy of Nutrition and Dietetics as a student member. Access to networking, job boards, and mentoring programs.
- Consider specialization after becoming an RDN. Board-certified specialties in pediatric nutrition, renal nutrition, oncology nutrition, and sports dietetics can increase earning potential by 10–20%.