- How the CSSD Content Outline Is Built
- The Three Domains by Scored Item Count
- Domain 1: Exercise and Performance Nutrition
- Domain 2: Clinical Sports Nutrition
- Domain 3: Nutrition Operations and Resource Management
- What the Questions Look Like
- Exam-Day Mechanics Tied to the Domains
- Sequencing Your Prep Around the Domains
- Eligibility and Renewal Context
- Frequently Asked Questions
- The CSSD exam has three official domains, and Exercise and Performance Nutrition is the largest at 56 scored items.
- Scored items total 125: 56, 49, and 20 across the domains in order. Another 25 unscored pretest items are mixed in.
- The exam is 150 four-option, single-best-answer questions delivered at Pearson VUE centers, with a $350 fee paid at scheduling.
- CDR publishes item counts, not percentage weights, so treat counts as the authoritative guide to emphasis.
How the CSSD Content Outline Is Built
If you are preparing for the Board Certified Specialist in Sports Dietetics credential from the Commission on Dietetic Registration (CDR), the single most useful document is the official CSSD Examination Content Outline. The version currently linked by CDR is effective November 2023, and it is supported by the January 2023 Job Analysis Report, which surveyed what practicing sports dietitians actually do. That lineage matters: the exam is built to test practice, not trivia. Questions are anchored to tasks and knowledge that working sports RDs rely on.
The outline organizes everything into three domains. The names below are the exact official headings:
- Exercise and Performance Nutrition
- Clinical Sports Nutrition
- Nutrition Operations and Resource Management
Before going deeper, it helps to be clear about what this credential is. If you are new to it, our overview pieces What Is CSSD Certification? and What Does CSSD Stand For? cover the basics. This article assumes you already know you are pursuing the sports dietetics specialty and want to understand how the exam content is divided.
The Three Domains by Scored Item Count
CDR publishes the allocation of scored questions as raw item counts rather than percentages. That is worth respecting. Many candidates convert counts into percentages and then build study plans around numbers the issuer never published. The honest approach is to work with the counts as given.
| Domain | Official Heading | Scored Items |
|---|---|---|
| Domain 1 | Exercise and Performance Nutrition | 56 |
| Domain 2 | Clinical Sports Nutrition | 49 |
| Domain 3 | Nutrition Operations and Resource Management | 20 |
| Total scored | 125 | |
Two observations follow directly from these counts. First, Domains 1 and 2 together account for 105 of the 125 scored items, so the bulk of your exam rests on applied sports nutrition and clinical sports nutrition. Second, Domain 3 is the smallest, but 20 scored items is still a meaningful block. Because the exam's passing standard comes from an Angoff passing-point study with statistical equating across forms, there is no published fixed percentage you can aim for, and no domain can be safely ignored. If you want to understand how scoring works in more detail, see CSSD Passing Score 2026: Exactly What You Need to Pass.
Domain 1: Exercise and Performance Nutrition
This is the largest domain at 56 scored items, and it is the heart of the specialty. It covers the application of nutrition to training, competition, and recovery. Expect scenario questions where you must choose the best recommendation for a particular athlete, sport, and situation.
Domain 1 focus areas to master
Questions here ask you to apply sports nutrition science to realistic athlete scenarios rather than recite definitions.
- Energy and macronutrient needs across training phases, including how needs shift between base building, peak training, competition, and off-season
- Carbohydrate, protein, and fat strategies for different sport types (endurance, strength and power, team and intermittent, aesthetic and weight-class sports)
- Fueling and hydration before, during, and after exercise, including electrolyte and sweat-loss considerations and heat or altitude conditions
- Body composition assessment and goal setting, and how to interpret and communicate results responsibly
- Ergogenic aids and supplements: evidence, safety, and the issue of banned or contaminated products in tested athletes
- Special populations such as youth athletes, female athletes, masters athletes, and athletes with disabilities
A common trap in this domain is choosing an answer that is physiologically reasonable but wrong for the scenario. The best answer usually accounts for the athlete's sport, timing relative to training or competition, and practical constraints such as travel, gastrointestinal tolerance, or access to food. Study with a habit of asking, "What does this specific athlete need right now?" For a sense of how demanding this content feels in practice, read How Hard Is the CSSD Exam? Complete Difficulty Guide 2026.
Domain 2: Clinical Sports Nutrition
At 49 scored items, Clinical Sports Nutrition is nearly as heavy as Domain 1, and it is where many candidates underinvest. This domain addresses the medical and clinical conditions that intersect with athletic performance and health. Sports dietitians do not only fuel healthy athletes; they also manage athletes who are injured, ill, or at risk.
Domain 2 focus areas to master
Think of this domain as clinical nutrition applied to the athletic population, with the added complexity of ongoing training and competition demands.
- Disordered eating and eating disorders in athletes, including screening, referral, and the role of the multidisciplinary team
- Relative energy deficiency in sport (RED-S) and low energy availability, along with bone health and menstrual function concerns
- Injury, rehabilitation, and return-to-play nutrition, including considerations for surgery and immobilization
- Medical conditions in athletes such as diabetes, gastrointestinal disorders, food allergies, iron deficiency and anemia, and cardiovascular concerns
- Medications, supplements, and nutrient-drug or nutrient-condition interactions
- Nutrition assessment and documentation using sound clinical reasoning
Questions in this domain often present a patient or athlete with several overlapping issues and ask for the best next step. Prioritization is the skill being tested: safety first, then scope-of-practice and referral decisions, then nutrition intervention. A clinically strong RD who has never worked with athletes should concentrate on how training load changes the picture. A performance-focused RD with limited clinical background should invest heavily here. If you are weighing how your own background lines up with the credential, CSSD Requirements 2026: Eligibility, Prerequisites & How to Qualify explains the practice-hour expectations behind the specialty.
Domain 3: Nutrition Operations and Resource Management
The smallest domain, at 20 scored items, covers the business and program side of sports nutrition. Candidates who work one-on-one with athletes sometimes neglect it, and that is a mistake: these items tend to be learnable and can be a reliable source of points.
Domain 3 focus areas to master
This domain reflects the reality that many sports dietitians run programs, manage budgets, and lead teams, not just counsel individuals.
- Designing and managing sports nutrition programs and services within teams, athletic departments, or facilities
- Food service operations for athletes, including fueling stations, training tables, travel meals, and food safety
- Budgeting, resource allocation, and justifying the value of nutrition services
- Working with coaches, athletic trainers, physicians, and administrators, and communicating effectively across the team
- Professional practice, ethics, scope of practice, and documentation standards
- Education and outreach, including developing materials and presenting to athletes and staff
Because this material is more procedural, it rewards careful reading of the question stem. Look for the option that is realistic, ethical, and consistent with a dietitian's scope. The roles that draw on this domain are visible in the job market; CSSD Jobs describes the settings, from collegiate and professional athletics to military, performance centers, and private practice, where this operational knowledge is applied daily.
What the Questions Look Like
The exam uses multiple-choice items with four options and one best answer. That phrase "best answer" is important. Often two options are partially correct, and your job is to identify the one that is most appropriate, most complete, or safest given the scenario. Practice reading all four options before deciding, and eliminate answers that overreach your scope of practice or ignore a stated constraint in the stem.
Because the exam draws on a job analysis of actual practice, expect application-level questions: case vignettes, calculations, and decision points rather than isolated definitions. Calculation questions may appear, which is why the exam provides an on-screen calculator.
Exam-Day Mechanics Tied to the Domains
Knowing the logistics lets you plan your pacing across the three domains. The facts below come from the Specialist Certification Candidate Handbook 2026-2027 and CDR's fee and scheduling pages.
| Item | Detail |
|---|---|
| Issuer | Commission on Dietetic Registration (CDR) |
| Delivery | Computer-based at Pearson VUE test centers, year-round |
| Fee | $350, payable when scheduling |
| Questions | 150 multiple-choice (125 scored + 25 unscored) |
| Testing time | 3 hours within a 3-hour-20-minute appointment (includes a 20-minute tutorial) |
| Materials | Closed book; on-screen calculator and erasable note board provided |
| Retest | Ordinary interval of 60 days; reauthorization required |
Three hours for 150 questions works out to roughly one minute and twelve seconds per question on average, a tight but workable pace if you do not stall. Unscheduled breaks count against your testing time, so plan to move steadily. Personal calculators are prohibited; a test-center handheld calculator may be available on request, but you should be fluent with the on-screen calculator before exam day. Practicing energy, fluid, and macronutrient calculations with an on-screen tool is a small habit that pays off in Domain 1 in particular.
For fee details beyond the exam itself, see CSSD Certification Cost 2026: Complete Pricing Breakdown, and for scheduling questions, CSSD Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Sequencing Your Prep Around the Domains
Rather than a generic study schedule, let the domain structure drive the order. The logic: start where the points are densest and where your personal gaps are widest, and finish with the smallest domain plus integrated practice. The block below is a sample arrangement for an eight-week runway; adjust the pace to your own timeline.
Domain 1: Exercise and Performance Nutrition
- Work through fueling, hydration, and macronutrient strategy by sport type
- Practice energy and fluid calculations on the on-screen calculator
- Review supplement evidence and anti-doping considerations
Domain 2: Clinical Sports Nutrition
- Prioritize RED-S, disordered eating, injury nutrition, and medical conditions in athletes
- Practice case vignettes that require prioritizing safety and referral
Domain 3: Nutrition Operations and Resource Management
- Cover program design, food service, budgeting, and team communication
- Review scope of practice and ethics scenarios
Integrated practice
- Take timed mixed-domain sets under exam conditions
- Return to your weakest domain and review missed items
If you want a fuller plan, including how to structure review and when to test yourself, our CSSD Study Guide 2026: How to Pass on Your First Attempt goes deeper. You can also build fluency with the question style by working through timed sets on the CSSD practice test platform, which lets you check your recall against realistic scenarios before you pay for the real appointment.
Key Takeaway
Do not let the small size of Domain 3 tempt you to skip it, and do not let a strong performance background convince you that Domain 2 will take care of itself. With a passing standard set by Angoff study and equating, the safest strategy is balanced competence weighted toward the two big domains.
Eligibility and Renewal Context
Understanding the domains is only useful if you can actually sit for the exam. Eligibility requires current RD status with CDR maintained for at least two years, and initial certification requires 2,000 sports dietetics practice hours as an RD within the five years preceding application. Specialty hours require verification, and approved education and professional substitutions may cover at most 500 hours. Full details are in our requirements guide and on CDR's eligibility page.
The credential runs on a five-year cycle. Standard recertification requires 1,500 sports specialty hours within the preceding five years, payment of the fee, and passing the specialist exam again, which means the domain knowledge you build now is not a one-time investment. CDR has also run a separate 2026-2028 longitudinal-assessment pilot for certain CSSDs whose certification expires between January 31, 2029 and June 30, 2030. Its published opt-in deadline was January 1, 2026, so eligibility dates alone do not mean enrollment is still open. The pilot's reduced hours apply only to that pathway, not to initial certification or ordinary exam-based renewal.
Looking at outcomes, CDR reported for July-December 2025 an overall pass rate of 81% across 152 examinees, with first-time takers at 77% (77 examinees) and recertification candidates at 92% (50 examinees). CDR's published table repeats January-June 2025 on two rows with conflicting figures, so the July-December 2025 period is the latest unambiguously dated reporting window. For a closer look, see CSSD Pass Rate 2026: What the Data Shows. And if you are still deciding whether the credential suits your career, Is the CSSD Certification Worth It? Complete ROI Analysis 2026 weighs the investment.
Frequently Asked Questions
Three: Exercise and Performance Nutrition, Clinical Sports Nutrition, and Nutrition Operations and Resource Management. These are the exact domain headings in CDR's CSSD Examination Content Outline.
Exercise and Performance Nutrition, with 56 of the 125 scored items. Clinical Sports Nutrition follows with 49, and Nutrition Operations and Resource Management has 20.
No. CDR publishes scored-item counts (56, 49, and 20), not percentages. Study plans should be built from those counts rather than from converted percentages the issuer did not publish.
The exam has 150 multiple-choice questions, of which 125 are scored and 25 are unscored pretest items. You have 3 hours of testing time within a 3-hour-20-minute appointment that includes a 20-minute tutorial.
No. Personal calculators are prohibited. An on-screen calculator and erasable note board are provided, and a test-center handheld calculator may be available on request.