A Registered Dietitian (RD/RDN) uses food science and counseling to help people prevent and manage disease, from diabetes and kidney disease to tube feeding in the hospital. In the US the path is structured: since January 2024 you need a master's degree, an ACEND-accredited program with supervised practice (about 1,000 hours), a passing score on the CDR registration exam, and in most states a license. You will study biology and biochemistry, then learn the Nutrition Care Process (assess, diagnose, intervene, monitor), then practice it on real cases. The skill that sets great dietitians apart i
See the full roadmap free
Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 4 · about 24 weeks
Learn the science that everything else rests on: general and organic chemistry basics, biochemistry, anatomy and physiology, microbiology, and introductory nutrition. Review free using Khan Academy and MIT OpenCourseWare, and read the USDA Dietary Guidelines for Americans and MyPlate. Practice by keeping a 3-day food record for yourself and analyzing it in USDA FoodData Central. Compare it to the DRIs and calculate energy needs with the Mifflin-St Jeor equation. Also start reading about motivational interviewing, since counseling is half the job. Finish by explaining one nutrient pathway (for example, how carbohydrate becomes glucose and insulin responds) to a friend without notes. If you can teach it, you know it.
Chemistry and biochemistry for nutrition
Every nutrition decision, from why fiber slows glucose to why potassium matters in kidney disease, comes down to molecules. If you understand the chemistry, you can reason through new cases instead of memorizing rules.
Anatomy, physiology and microbiology
You will assess real bodies with real diseases. Knowing how organs normally work lets you spot what has gone wrong and why a diet change helps. Microbiology underpins food safety and gut health.
Introductory nutrition and dietary standards
This is the language of the profession. Patients, doctors and employers expect you to know what people need, where it comes from, and what national guidance says.
Early counseling foundations and teaching it back
Counseling is half the job. People rarely change because they are told what to do; they change when they feel heard. Teaching a concept aloud also exposes what you truly understand.
Then 3 more stages (about 344 weeks in all) with lessons, drills, projects, 10 interview questions with strong answers and free resources.