- Credential Identity Snapshot
- Exam Format at a Glance
- The Six Domains and Their Weights
- Why the Domains Follow a Clinical Workflow
- Eligibility Checklist
- Fees, Proctors and Timing Rules
- Scoring, Pass Rate and Passing Point Facts
- Renewal and Maintenance Cheat Sheet
- Official Preparation Resources
- Licensure, Employment and Salary Cautions
- Scheduling Your Review by Domain
- Frequently Asked Questions
- The DACBN is administered by the American Clinical Board of Nutrition: 150 multiple-choice questions, two 75-question sections, 90 minutes each.
- History, Examination and Treatment each carry 19%; Assessment and Diagnosis 15% each; Follow-up 13%.
- Exam fee is USD 1,000, retake fee USD 250, and annual renewal is USD 300.
- Eligibility includes a healthcare doctorate, 300 postdoctoral nutrition hours, one year of practice, and a publication or accepted article.
Credential Identity Snapshot
Before memorizing anything, confirm you are studying the right credential. Here, DACBN means the Diplomate of the American Clinical Board of Nutrition, a doctoral-level credential issued and administered by the American Clinical Board of Nutrition (ACBN). Other credentials use similar-looking acronyms, so treat the ACBN's own documents as the source of truth for fees, formats and rules. If you need a refresher on the basics, see What Is DACBN? or What Does DACBN Stand For?
This one-page-style review pulls together the facts candidates most often need: format, domains, eligibility, money, scoring and renewal. Where official documents disagree with one another, this cheat sheet says so rather than smoothing it over.
Exam Format at a Glance
| Item | DACBN Fact |
|---|---|
| Administrator | American Clinical Board of Nutrition (ACBN) |
| Delivery | Paper-and-pencil, given by an ACBN-approved proctor at an approved location |
| Questions | 150 single-answer multiple-choice items, four options each |
| Structure | Two sections of 75 questions, 90 minutes per section |
| Working time | Three hours total, plus an optional supervised 15-minute break |
| Materials | No books, notes or electronic devices |
| Scoring basis | Total correct responses across the whole exam; no guessing penalty |
| Standard setting | Modified-Angoff, criterion-referenced |
| Exam fee / retake fee | USD 1,000 / USD 250 |
Two practical consequences follow. First, because there is no guessing penalty, you should never leave an item blank; an educated guess always has nonnegative expected value. Second, because the exam is closed-book and paper-based, your preparation should include timed, pen-and-paper practice. Scrolling through digital flashcards is not the same skill as working a 75-question section in 90 minutes, which gives you roughly 72 seconds per item.
For a deeper look at how demanding this format is in practice, read How Hard Is the DACBN Exam?
The Six Domains and Their Weights
The ACBN publishes six content domains with official weights. These are examination objectives, not a curriculum, so they tell you how questions are distributed rather than what to read. The source is the Test Specifications section of the September 2023 Candidate Handbook (pp. 11-12). The July 2023 Policy Manual states the 2023 exam uses the 2020 Role Delineation Study, and the newer handbook independently republishes the same six percentages.
| Domain | Weight | Approx. share of 150 items |
|---|---|---|
| 1. History | 19% | About 28-29 questions |
| 2. Examination | 19% | About 28-29 questions |
| 3. Assessment | 15% | About 22-23 questions |
| 4. Diagnosis | 15% | About 22-23 questions |
| 5. Treatment | 19% | About 28-29 questions |
| 6. Follow-up | 13% | About 19-20 questions |
Together, History, Examination and Treatment account for 57% of the exam. That does not mean the other three can be ignored, but it does tell you where an hour of review pays the most. For a full breakdown, see DACBN Exam Domains: Complete Guide to All 6 Content Areas.
Domain 1: History (19%)
Expect scenarios that test what a clinician should elicit before any hands-on work begins.
- Dietary, medical, family and lifestyle history relevant to nutritional status
- Recognizing which history findings should redirect the workup
- Interpreting patient-reported symptoms in a nutrition context
Domain 2: Examination (19%)
Tied for the heaviest weight, this domain covers the physical and clinical findings used in nutrition practice.
- Connecting physical signs to possible nutritional causes
- Choosing appropriate examination steps for a presenting picture
- Separating nutritional findings from findings that need other evaluation
Domain 3: Assessment (15%)
Here the question is what the data mean once you have them.
- Interpreting laboratory and functional data in context
- Weighing the reliability and limits of assessment tools
- Integrating history and examination findings into a coherent picture
Domain 4: Diagnosis (15%)
Reasoning from integrated findings toward a defensible clinical conclusion.
- Differentiating among competing explanations for the same presentation
- Recognizing when findings are insufficient to conclude
- Prioritizing likely contributors to the patient's condition
Domain 5: Treatment (19%)
The third 19% domain, and the one where applied judgment matters most.
- Selecting appropriate nutritional interventions for a given diagnosis
- Sequencing and prioritizing interventions
- Recognizing safety considerations, contraindications and interactions
Domain 6: Follow-up (13%)
The lightest domain, but still roughly one in eight questions.
- Monitoring response and deciding when to adjust a plan
- Choosing the right markers and timelines for reassessment
- Knowing when referral or escalation is appropriate
The topic descriptions above are study framing built from the domain names. The official weights are the authoritative part; for question-level coverage, rely on the ACBN's own materials rather than on any outside list.
Why the Domains Follow a Clinical Workflow
The six domain names mirror the order of a clinical encounter: take a history, examine, assess, diagnose, treat, follow up. That structure is a useful memory aid. When a question stem describes a patient, ask yourself which stage of the workflow it is testing. A question about what to ask first lives in History. A question about what a finding suggests lives in Examination or Assessment. A question about what to do next lives in Treatment, and a question about what to check later lives in Follow-up.
This framing helps on exam day because wrong answer options are often plausible actions from the wrong stage. If the stem is asking about assessment, an option that jumps straight to treatment is probably a distractor. Build the habit of naming the stage before reading the options.
Key Takeaway
Label each practice question with its workflow stage (History, Examination, Assessment, Diagnosis, Treatment, Follow-up) before answering. Over time, you will see which stages you misread most often and can target those domains first.
Eligibility Checklist
You cannot sit the exam until the Board approves your application, and the requirements are substantial. According to the September 2023 handbook (pp. 5-7) and the current FAQ, candidates need:
- A professional healthcare doctorate with qualifying accreditation or a recognized foreign equivalence.
- Good professional standing, with no disciplinary actions.
- 300 clock hours of qualifying postdoctoral nutrition education, or a Board-approved qualifying residency.
- At least one year of nutrition practice, documented by a current CV.
- Publication evidence: proof of publication or acceptance of a clinical nutrition article in a Board-approved peer-reviewed journal.
- Supporting documents: educational records, application forms, agreements and signed attestations.
Note that the 300 hours are an eligibility requirement, not an exam duration. The ACBN maintains a list of programs at its 300 Hours Courses page; check that your coursework qualifies before enrolling. For a fuller walkthrough, see DACBN Requirements: Eligibility, Prerequisites & How to Qualify.
Fees, Proctors and Timing Rules
| Cost or Rule | Detail |
|---|---|
| Examination fee | USD 1,000 |
| Retake fee | USD 250 |
| Annual renewal fee | USD 300 (initial fees prorated) |
| Proctor | Candidate arranges an ACBN-approved proctor |
| Testing deadline | Written exam must be taken within six weeks of application approval |
| Break | Optional supervised 15-minute break, in addition to the three hours |
The six-week window is the rule that catches people off guard. Because you must locate and schedule an approved proctor yourself, start that conversation before your application is approved, so the clock does not run out while you search. Proctor duties are described in the ACBN Proctor's/Examiners' Training Manual and in the September 2023 handbook (pp. 7-9).
For a complete money picture, including how training costs fit in, see DACBN Certification Cost: Complete Pricing Breakdown. For scheduling mechanics, see DACBN Exam Dates: Testing Windows, Deadlines & Scheduling.
Scoring, Pass Rate and Passing Point Facts
The DACBN uses a modified-Angoff, criterion-referenced standard. In plain terms, the passing point reflects a judgment about minimum competence rather than a ranking against other candidates. The total number of correct answers across the entire exam determines the result, and there is no penalty for wrong answers.
The only published outcome data point is small and historical. The ACBN Annual Report for calendar year 2022 (PDF p. 11) reports five candidates and five passes, an issuer-reported 100% pass rate, with a 65% passing point for the form used.
Renewal and Maintenance Cheat Sheet
Passing the exam is not the end of the paperwork. Active status requires annual renewal with a USD 300 fee and an alternating Year A / Year B education pattern. The first educational cycle begins the year after you pass, and initial fees are prorated. Education is due December 31.
Year A
A single path: at least 12 CE credits from approved seminars.
Year B (choose one)
- 12 academic credit hours teaching clinical nutrition at an accredited institution
- One clinical nutrition article or two clinical nutrition case studies, published or accepted in a Board-approved peer-reviewed journal
- 12 approved or recognized seminar credits
If certification lapses into decertification, the September 2023 handbook and current FAQ require full reapplication and re-examination, even though the July policy manual retains older reinstatement wording. Details are on the ACBN Re-Certification Requirements page and in the handbook (pp. 17-20).
Official Preparation Resources
The ACBN maintains an Exam Resources page with suggested books and sample questions. Two points matter. The listed books are suggested resources, not required reading, and the sample questions illustrate format and topics rather than covering the exam exhaustively. Use them to calibrate to the item style, then broaden your review using the six official domains as your map.
A sensible resource stack looks like this:
- The Test Specifications pages of the September 2023 Candidate Handbook, for domain names and weights
- The ACBN sample questions, for item format and phrasing
- The suggested books on the Exam Resources page, selectively, mapped to your weakest domains
- Timed, closed-book practice using a DACBN-style practice test to rehearse the 75-question, 90-minute pacing
For a structured approach to building a plan, see the DACBN Study Guide: How to Pass on Your First Attempt, and for background on coursework pathways, see DACBN Training.
Licensure, Employment and Salary Cautions
Certification is not licensure. The DACBN is a Board credential; it does not by itself grant authority to practice in any jurisdiction. One documented intersection: the North Carolina Board of Dietetics/Nutrition recognizes the DACBN examination under its Category F pathway (CNS or DACBN), but it independently evaluates academic and supervised-practice requirements. If you practice in a regulated state, check that state's board directly.
On earnings, be skeptical of any figure presented as a "DACBN salary." Pay depends heavily on the clinician's underlying profession, employment setting and practice economics, and there is no verified, certification-specific pay premium to cite here. Because candidates already hold a healthcare doctorate and years of practice, the credential's value is better framed as added clinical-nutrition standing and scope credibility than as a guaranteed raise. To evaluate that tradeoff for yourself, read DACBN Salary Guide: Complete Earnings Analysis, Is the DACBN Certification Worth It? and DACBN Jobs.
Scheduling Your Review by Domain
Since the exam rewards integrated clinical reasoning, one short schedule built around the six domains is enough. This sample runs six weeks and front-loads the heaviest domains while leaving the final week for full-length timed practice. Adjust it to your own gaps.
History (19%)
- Review intake frameworks and history-driven red flags
- Do untimed practice, labeling each item's workflow stage
Examination (19%)
- Link physical findings to nutritional causes
- Practice distinguishing nutritional from non-nutritional findings
Assessment and Diagnosis (15% each)
- Work lab and data interpretation cases
- Drill differential reasoning from integrated findings
Treatment (19%)
- Review interventions, sequencing, safety and interactions
- Practice choosing the best next step among plausible options
Follow-up (13%) plus weak-area repair
- Review monitoring, reassessment timing and referral triggers
- Revisit your lowest-scoring domain from earlier weeks
Timed, closed-book simulation
- Complete two 75-question, 90-minute blocks on paper
- Never leave an item blank, since there is no guessing penalty
Key Takeaway
Start the proctor search and application paperwork in parallel with your review. The six-week window after application approval is short, and a proctor scheduling delay can compress your final preparation.
For a quick online rehearsal of the pacing, try the practice questions on the main site, then reconcile any misses against the official domain list.
Frequently Asked Questions
There are 150 single-answer multiple-choice questions with four options each, split into two 75-question sections of 90 minutes each. An optional supervised 15-minute break is additional to the three hours of working time.
History, Examination and Treatment are tied at 19% each. Assessment and Diagnosis are 15% each, and Follow-up is 13%. These are official examination objectives, not a study curriculum.
No. Scoring is based on the total number of correct responses across the whole exam, so you should answer every question rather than leave any blank.
The examination fee is USD 1,000 and a retake costs USD 250. Active status requires annual renewal at USD 300, with initial fees prorated, plus alternating Year A and Year B educational activities.
No. Certification and licensure are separate. For example, the North Carolina Board of Dietetics/Nutrition recognizes the DACBN examination under Category F but still independently evaluates academic and supervised-practice requirements. Check your own jurisdiction's board.
For related background, you can also explore DACBN Certification and What Is DACBN Certification?, and always confirm current rules with the ACBN before you apply.