How to become a nutritionist

1. 1Earn a bachelor's degree with ACEND-accredited coursework

   Time: 4 yearsCost: $10,477/yr median public in-state tuitionSources 1, 2, 3

   The usual start is a bachelor's degree in nutrition or dietetics that includes an ACEND-accredited Didactic Program in Dietetics (DPD). Expect chemistry, organic chemistry, biochemistry, anatomy and physiology, microbiology, food science and medical nutrition therapy. If you already have a degree in another field, you can complete DPD coursework afterward or choose a graduate program that includes it. Search ACEND's directory to confirm accreditation.

2. 2Complete a graduate degree

   Time: 1-2 yearsCost: Median federal debt $33,606 for dietetics master's graduatesSources 8, 5

   Since January 1, 2024, CDR requires at least a graduate degree to sit for the RD exam. The degree can be in any major from a USDE-accredited institution, but most students choose nutrition, dietetics or public health. Some ACEND-accredited graduate programs combine the master's coursework and supervised practice in one program, which is usually the most efficient route.

3. 3Finish 1,000 hours of supervised practice

   Time: About 6-12 months full timeCost: Often unpaid; some internships charge tuitionSources 2, 11

   You need at least 1,000 hours of supervised practice through an ACEND-accredited dietetic internship, coordinated or graduate program, or individualized supervised practice pathway; at least 600 of those hours must be in real professional settings. Rotations cover clinical nutrition in hospitals, community nutrition and food service management. Separate dietetic internships are competitive and are applied for after the DPD, so apply to several and plan for the possibility of relocating.

4. 4Pass the CDR registration exam

   Time: One computer-based examCost: $250 exam fee (2026)Sources 2, 9

   When your program director confirms you have finished the requirements, you submit your eligibility to CDR. Once CDR validates you, its testing vendor, Pearson VUE, emails an authorization to test within 48 hours, and you then have one year to test. The RD exam is computer-based, with a 3-hour limit, at Pearson VUE test centers. After passing, you can use the RD or RDN credential and apply for a state license.

5. 5Get your state license and keep up your credential

   Time: A few weeks, then ongoingCost: State license feesSources 1, 4, 10

   Many states require a license to practice as a dietitian or nutritionist, some only protect certain titles, and a few have no rules. The RD credential usually satisfies state licensing requirements. To keep the RDN, CDR requires 75 continuing professional education units every five years, including one in ethics. Check your state's rules in the CareerOneStop License Finder before you practice or counsel clients across state lines.

Programs, tuition and graduates’ earnings

U.S. Department of Education, College Scorecard (most recent cohorts, released 2026-10-15). Scorecard groups programs by 4-digit field, so a row can include related programs. Tuition is the median published undergraduate tuition and fees of the colleges offering the program (shown only for undergraduate credentials); debt is the median of programs’ median federal loan debt at completion; earnings are the national median for the field and credential four years after completion.

Requirements differ by state. Check your state’s rules in the CareerOneStop License Finder (U.S. Department of Labor) before you enroll.

Science literacy

Dietitians read lab results and new research and must judge which nutrition claims hold up.

Counseling

Changing what people eat depends on listening, motivating and fitting advice to their culture, budget and cooking skills.

Math

Calorie, protein, fluid and tube-feeding calculations have to be exact, especially for sick or very small patients.

Clear communication

Dietitians explain plans to patients in plain words and to doctors and nurses in clinical terms.

Organization

Hospital dietitians may follow dozens of patients at once and must document each assessment on time.

O*NET 31.0 rates these skills as most important for the occupation: reading comprehension, active listening, speaking, critical thinking, writing.

Training cost

$41.9K–$75.5K

Before financial aid

Time

6 years

Typical path

Median pay

$76,400

All US jobs: $50,980

Payback once qualified

1.6–3.0 yrs

Pay above the all-jobs median vs. cost

Low: 4 years x College Scorecard median public in-state tuition for dietetics bachelor's programs ($10,477) = $41,908, the cost of a bachelor's degree alone, which is enough for some non-RD nutritionist roles. High (RD route): $41,908 plus the median federal loan debt of dietetics master's graduates ($33,606) as a stand-in for graduate cost = $75,514. Not included: the RD exam fee, state license fees, internship costs, living costs and private tuition, which can be much higher.

Rough guide only: ignores taxes, aid, interest and earnings given up during training. How we calculate it.

• Board-certified specialist dietitian

  With practice experience, RDs can earn CDR specialist certification in areas such as oncology, sports or gerontological nutrition, or diabetes education credentials.

• Clinical nutrition manager

  Experienced dietitians can supervise other dietitians and food service staff, sometimes after adding management training.

• Healthcare administrator$123,860 median

  Moving into broader hospital or program management usually takes a master's in health administration or business plus management experience.

• College professor$82,250 median

  Teaching and research in nutrition usually requires a doctoral degree, though some programs hire RDs with master's degrees as instructors.