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Dietitian Vs Nutritionist: What's the Difference?

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Dietitians and nutritionists are both professionals who study diet, food, and nutrition.

While they are comparable, they are not identical or interchangeable. In general, the function of a dietitian is more controlled than that of a nutritionist, and the distinction is due to the type of education, and professional training received.

The main difference between a dietitian and a nutritionist is the number of legal restrictions on each title. A dietician must have specific licenses and qualifications in order to practice. The term ‘nutritionist’ on the other hand is less regulated than ‘dietitian’ and has a broader connotation. 

In certain circumstances, anybody can use the label "nutritionist," even if they have no professional training.

This blog post will further discuss the differences in more detail. We will discuss their roles, their focus, and the other differences between them. Let’s get started!

What is a Dietitian?


Dietitians specialize in food and nutrition. Their business is all about keeping their patients healthy. As a part of their job roles, these experts educate their clients about various diets, evaluate individual nutritional needs, develop customized meal plans, etc. 

What is a Nutritionist?


Nutritionists are interested in the body’s overall wellness. To ascertain how an individual’s nutritional intake might affect their health, prevent sickness or lessen the symptoms of a chronic condition, they study their diet in addition to their medical history. Nutritionists might also suggest laboratory tests if they are qualified enough to do so, based on their education and experience.

Key Differences between Dietitians and Nutritionists

Difference in philosophy

When creating a ‘plan of action’ for patients, registered dietitians are required to follow a number of rules established by the medical association. For instance, an RD will follow the American Diabetes Association’s recommendations and offer therapy if their patient has diabetes.

In comparison, nutritionists are concerned with their patient’s biochemistry, mental and emotional health, lifestyle, surroundings, and spiritual state. Nutritionists treat both individuals and groups of people by using fresh, organic meals. They promote and encourage having an active lifestyle, emphasize healthy eating, make use of proven treatments, and ground their strategy in scientific research.

Conversely, a nutritionist may treat their diabetic patient using a holistic approach. They understand the intricacies of their patient’s body and how their condition may be related to other events occurring within.

Difference in education

The variance in schooling, certifications, and licenses necessary to practice under the specified titles is one of the most noticeable disparities between the two professions.

To become a certified dietitian in the United States, all dietitians must have a bachelor's degree in their field,  a specified amount of supervised working hours at a licensed institution, and pass a national exam. To be eligible for the certification exam in 2024, all dietitians will need to earn a graduate degree rather than a bachelor's degree. In addition, several states require dietitians to get a license before practicing.

Nutritionists may or may not require formal education, licenses, or credentials to practice. In the states where they require it, a Certified Nutrition Specialist (CNS) license must be obtained from a certifying authority, such as the American Nutrition Association (ANA).

They must also work a specified amount of practical experience hours, generally at least 1,000, before taking the test.

Differences in the type of job roles

Dietitians practice in four areas-:

  • Clinical institutions: Clinical dietitians work in hospitals with inpatients.
  • Food service management: Dietitians who specialize in food service management are responsible for ensuring that food produced for a big establishment like a school system or military post satisfies food safety standards and is nutritionally appropriate.
  • Community: Community dietitians contribute to the design and implementation of initiatives focused on populations rather than individuals.
  • Research: They may work in universities, hospitals, and organizations with a team.

Nutritionists operate in various fields. Some of them include:

  • Sports: They work with athletes to develop meal plans and educate them on nutrition in order for them to increase their performance.
  • Consultancy: This is someone who provides nutrition advice but does not meet the educational or licensure criteria of a professional nutritionist.
  • Gerontology: A gerontological nutritionist is interested in the effects of diet on the elderly. They give knowledge on how to care for aged patients and clients in hospitals, nursing homes, and community health clinics.

Comparison Chart: Dietitian Vs Nutritionist

EducationVarious qualifications are required to become a dietitianNo qualifications are necessary
TrainingTraining is required; based on qualificationsTraining varies; usually, a diploma is enough
FocusSpecific health conditionsGeneral health of the body
TherapyMust follow specific guidelinesTreatments can vary based on an individual’s condition

Similarities between Dietitians and Nutritionists

The most significant similarity between dietitians and nutritionists is that they provide their clients with food-based suggestions based on scientific research. What’s more, both fields of work also offer various career opportunities in both clinical and community settings based on their respective education levels.


What is a Registered Dietitian?

Registered dietitians are individuals who work in hospitals and clinics. They prescribe personalized diets for the patients of that hospital or institution.

What is a Registered Nutritionist?

Registered nutritionists and experts who have graduated with a bachelor’s degree, completed programs under supervision, and national examinations to be registered and qualified. They do not necessarily have to work from an office.

Do I need a dietitian or a nutritionist?

If you seek to improve your overall health, you must consult a nutritionist. However, if you have specific ailments that require medical attention (such as diabetes), you would be referred to a dietitian.


The fundamental distinction between dietitians and nutritionists is that dietitians associate more with the overall healthcare system, whereas nutritionists provide more generic healthcare advice, sometimes without having official licensing. Both professions are ultimately about making their clients eat and live healthily.


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About the Author: Tom Vincent

Tom Vincent graduated with a bachelor's degree in economics and social studies. He then started his higher education at the University of François Rabelais in Tours with a DUT Information Communication. To expand his knowledge, he also followed a professional degree in e-commerce and digital marketing at the Lumière University of Lyon. On this project, he is in charge of articles covering language, industry and social.
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