DACBN
Diplomate, American Clinical Board of Nutrition (DACBN)
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ExploreAbout this exam
The DACBN - Diplomate, American Clinical Board of Nutrition - is the credential held by certificants of the American Clinical Board of Nutrition (ACBN), a certifying agency in clinical nutrition founded in 1986. ACBN describes itself as the only interdisciplinary diplomate program for doctoral-level providers in clinical nutrition certified by the National Commission for Certifying Agencies (NCCA), which has accredited it since 2005; the organization is a 501c3 non-profit. The credential is therefore aimed at doctorate-level health care providers who want formal recognition of specialized clinical nutrition practice, and diplomates describe using it to signal board-certified nutrition expertise to patients and to state boards. ACBN states that it establishes education, examination, experience, and ethics requirements for certification, so candidates should expect eligibility to rest on more than a test score. The exam itself is a clinical nutrition examination for doctoral-level practitioners; ACBN's site points candidates to a Candidate's Handbook, exam resources, forms to sit, proctor forms, and 300-hour courses, and those are the appropriate starting points for format, eligibility, and preparation planning. Because ACBN does not publish exam length, timing, pass score, fees, or retake rules on its public homepage, verify every such detail directly with ACBN before scheduling. This page is independent study material and is not affiliated with or endorsed by ACBN.
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About DACBN preparation
What exactly does the DACBN credential signify?
ACBN states that certificants hold the distinction of Diplomate, American Clinical Board of Nutrition (DACBN). It is a certification in clinical nutrition for doctoral-level providers, and ACBN describes itself as the only interdisciplinary diplomate program for doctoral-level providers in clinical nutrition certified by NCCA.
Who should pursue this credential?
Doctorate-level health care providers who specialize in or want to formalize clinical nutrition practice. ACBN emphasizes an interdisciplinary, inclusive community, and diplomate testimonials describe benefits for physicians, chiropractors, and dentists who want to advertise nutrition specialization and confer with doctoral-level peers in other specialties.
What does the exam cover?
ACBN presents the examination as a clinical nutrition examination for doctoral-level providers and directs candidates to its Candidate's Handbook and exam resources for content and logistics. The public site does not publish a domain-by-domain blueprint, so obtain the current handbook from ACBN rather than relying on secondhand outlines.
How long is the exam and how many questions does it have?
ACBN's public site does not state item counts or time limits. Both are set in ACBN's Candidate's Handbook and application materials, which can change between administrations. Confirm the current figures with ACBN directly before you build a timed practice plan around any number.
What score do I need to pass, and what does it cost?
Neither the passing standard nor the fee is published on ACBN's homepage. Both belong in the Candidate's Handbook and application forms. Treat any figure you find elsewhere as unverified and confirm it with ACBN, since fees and standards are revised periodically and older numbers circulate widely.
If I fail, can I retake it, and how soon?
ACBN does not publish its retake policy on the public site. Retake windows, waiting periods, and any additional fees are governed by ACBN's handbook and application terms. Ask ACBN in writing before applying so you understand the consequences of an unsuccessful attempt.
How should I prepare, and in what order?
Start with ACBN's Candidate's Handbook and exam resources to establish eligibility and scope, then build a clinical nutrition study plan around doctoral-level biochemistry and patient care. ACBN also lists 300-hour courses; diplomates describe that education as changing their clinical practice, so consider it alongside self-study.
What are common failure modes for candidates?
Preparing from memory or outdated outlines rather than ACBN's current handbook; neglecting biochemistry depth expected at doctoral level; and underestimating eligibility paperwork such as forms to sit and proctor forms. Confirm requirements early, since administrative gaps can delay an attempt regardless of your knowledge.
How long is the credential valid, and how do I verify one?
ACBN's public site does not state a validity period or renewal terms; check the handbook. ACBN does provide credential verification and a doctor search, so patients and employers can confirm a diplomate's status through the organization rather than relying on a certificate alone.
Is this page affiliated with ACBN?
No. This is independent study material written for candidates searching the DACBN exam. It is not affiliated with, endorsed by, or sponsored by the American Clinical Board of Nutrition. Always use ACBN's official handbook, forms, and correspondence as the authoritative source for requirements and exam logistics.