How to Become a Nutritionist

Updated February 28, 2023

Learn how to become a nutritionist. Practical steps, nutritionist requirements and experience you’ll need to become a Nutritionist.

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The path to becoming a nutritionist depends on education, experience and location. Regarding the latter, many states have formal licensing and certification requirements in order to work in the field. Even in states that do not have specific requirements, employers and clients may give preference in hiring to people with these credentials.

This page is designed to help aspiring nutritionists better understand the key issues and questions that arise during the educational process, including: What's the difference between an RDN and a CNS credential? Do I need a degree? What types of science classes will I need to take? Find answers to these questions below, as well as the primary steps people take when looking to become a nutritionist.

What Does a Nutritionist Do?

Nutritionist Basics

Nutritionists are experts in food and nutrition. They can promote health using nutrition information and are considered specialists who advise people on what to eat to keep a healthy lifestyle. Nutritionists frequently work closely with individuals who have medical issues, such as diabetics or people undergoing critical treatments.

Types of Nutritionist:

While you can be classified as just a nutritionist, you can also specialize in an aspect of nutrition, including:

Nutritionist Salaries and Job Forecast

Nutritionist Salary Details

According to the BLS, nutritionists earned a median annual wage of $63,090 in 2020. The agency also found that on average, nutritionists earned an hourly rate of $30.33. The states with the highest average salaries for nutritionists in 2020 are as follows:

State Wage
California $81,070
Alaska $78,350
District of Columbia $73,150
Hawaii $72,810
New Jersey $72,750

The map below shows details of the 10th, 50th, and 90th percentile earners for each state.


Career Outlook for Nutritionists

According to the U.S. Bureau of Labor Statistics, the job opportunities for nutritionists are expected to increase by 21 percent between 2012 and 2022. That growth, the agency reports, is much higher than the average for all occupations. This increase has been attributed to the nationwide concern about rising obesity rates and the illnesses that can be exacerbated by obesity—such as diabetes and heart disease. In addition, as people live longer, there is a need for nutritionists to work with geriatric patients in facilities such as nursing homes. Trends toward eating locally grown, organic and non-genetically modified foods have also opened up opportunities for nutritionists who specialize in those areas.

The BLS projects that job opportunities for nutritionists are expected to increase by 8 percent between 2019 and 2029. That growth, the agency reports, is higher than the average for all occupations. This increase has been attributed to the nationwide concern about rising obesity rates and the illnesses that can be exacerbated by obesity—such as diabetes and heart disease. In addition, as people live longer, there is a need for nutritionists to work with geriatric patients in facilities such as nursing homes. Trends toward eating locally grown, organic, and non-genetically modified foods have also opened up opportunities for nutritionists who specialize in those areas.

Nutritionist: Nutritionists are experts in food and how it relates to your health. They specialize in helping people live a healthy lifestyle and use food to do that.
Median salary: $63,090.

Dietitian: Dietitians have finely tuned skills in nutrition and can advise patients on how to use food for health.
Median salary: $63,090.

Sports nutritionist: Sports nutritionists specialize in helping athletes properly fuel their bodies and tailor diets for active patients.
Median salary: $53,439.

Health educator: Health educators are trained in actually teaching people how to live healthy and use food in proper ways to take care of their bodies.
Median salary: $65,737.

Food scientist: Food scientists study food using microbiology, engineering, and similar skill sets to examine what everything is made of and how it affects bodies and the environment.
Median salary: $62,680.

States that are experiencing the most growth in nutritionist jobs include (BLS):

Here are the Stats:

1. Texas
2. Utah
3. Colorado
4. Kentucky
5. Arizona
6. Idaho
7. Oklahoma
8. New Hampshire
9. Montana
10. Massachusetts

Select a state below for more information about employment and job growth for nutritionists.

How to Become a Nutritionist

How long do you have to go to school to be a nutritionist?

This can vary based on the state you live in and what the requirements are for certification. It can range from a short program of a few months to a four-year bachelor's program.

Can I be a nutritionist without a degree?

You can. Technically you can be a nutritionist without pursuing a degree, but most employers looking for a nutritionist require a certain amount of coursework, and board certifications. If you want to become a registered dietitian, you will need to get a bachelor's degree in a related field, like nutrition or food science.

What major do you need to be a nutritionist?

Popular majors for people who go into nutrition include food science, nutrition, chemistry, biology, dietetics, or biochemistry. However you don't have to get a degree at all to pursue a degree in nutrition. It will be of great help in your career, though, since most degree programs offer more credentials.

Nutrition School Accreditation Requirements for Licensing

Attending an accredited school or university will not only train you to become a nutritionist but help you attain licensing once you've completed your coursework. Look for programs that are certified with the Accreditation Council for Education in Nutrition and Dietetics, as those are the programs recognized as appropriate for this field.

How to Become a Nutritionist

Step 1
Earn a Bachelor's Degree in a Health-Related Field

Many entry-level nutritionists have a bachelor's degree in health, nutrition or a related field, such as dietetics or food service system management. Undergraduate programs that lend themselves to a career as a nutritionist may include the following:

  • Food science
  • Microbiology
  • Dietetics
  • Chemistry
  • Nutrition
  • Biochemistry
  • Clinical nutritional care
  • Anatomy
  • Community nutrition
  • Psychology
  • Biology

Bachelor's degree programs can typically be completed in four years. During their training, students may also have to complete an internship, either during their undergraduate program or shortly after graduation.

Step 2
Meet Your State's Licensing and Certification Requirements

Licensure and certification requirements differ across the country. Many states require nutritionists to obtain and update special certifications, while others require completion of exams to prove knowledge and skills. Make sure you research your state's requirements and procedures before moving forward with training.

The Registered Dietitian Nutritionist (RDN) and Registered Dietitian (RD) credentials, which are administered by the Commission on Dietetic Registration, meet the requirements for licensing in some states. In order to earn one of these credentials, you need to:

  • Graduate from an approved and accredited bachelor's degree program
  • Complete a supervised practice program
  • Pass a national examination
  • Complete continuing education requirements

Nutritionists who have graduated from a master's or doctoral degree program and have completed 1,000 hours of experience may earn the Certified Nutrition Specialist (CNS) credential administered by the Certification Board of Nutrition Specialists.

Step 3
Complete an Advanced Program or Degree (Optional)

Some nutritionists decide to continue their education by completing a master's or doctorate degree program in nutrition. Although advanced degrees are normally not required to work as a nutritionist, they can prepare students to work as educators and researchers in the nutrition field.

A master's degree program typically takes an additional two years of full-time schooling, and often includes the following courses:

  • Medical nutrition therapy
  • Probability or Statistics
  • Molecular biology
  • Public policy and health issues

Doctoral programs in nutrition normally require students to take graduate-level courses in nutrition, chemistry and biology, perform fieldwork, and complete a dissertation. The curriculum may include the following coursework:

  • Advanced nutrition
  • Research applications
  • Nutrition assessment methods

Academic Paths in Nutrition

All students have their own goals and desires, based on the direction they want their career to go. Whether they pursue an associate degree to get started more quickly, or devote the time to a doctoral degree to advance to the top of the field, students must feel confident that their educational needs are being met and that their schooling has been worth the time and financial investment. The following are examples of how different degree levels can meet students' various goals.

Career Goal and/or educational needs Associate Bachelor's Master's Doctorate Online
I want to familiarize myself with the nutrition field, and either obtain an entry-level job, possibly pursuing further education later on.
I want to gain a strong foundation in nutrition principles and prepare to obtain a nutritionist license.
I want a flexible program that will provide a quality education and allow me to manage my other responsibilities.
I am a practicing nutritionist and I want to gain expertise in a specialty of the field.
I want to become a college professor, researcher, or executive in a healthcare facility.

In order to become a Certified Nutrition Specialist (CNS), candidates must obtain an advanced degree, complete 1,000 hours of fieldwork, and pass an exam.

Associate Degrees

The Associate of Science degree in nutrition gives students a basic overview of the discipline, as well as hands-on training that prepares them to work in the field. Although students cannot become licensed nutritionists by earning this degree alone, they can obtain employment as dietetic technicians, working under the supervision of a registered nutritionist or dietitian. In addition, this degree lays the foundation for students who eventually decide to continue their education with an eye toward becoming licensed.

Students in this program complete a well-rounded curriculum, including general studies courses in topics such as mathematics, writing and public speaking. Core nutrition courses in this program include weight management theory, herbal sciences, community nutrition, sports nutrition, sustainable food systems and cultural foods.

These degrees typically take two years to complete, and depending on the program, students may be able to receive on-the-job training through an internship. Following are examples of courses offered at this level:

Normal Nutrition

Provides an overview of the nutrition field and the principles of nutrition science.

Skills and Knowledge Gained

  • Conducting food lab experiments
  • Understanding essential nutrients like carbohydrates, fats, and proteins
  • Completing nutrient analysis

Modified Diets

Focuses on the relationship between nutrients and body functions, particularly for those who are suffering from health and medical conditions.

Skills and Knowledge Gained

  • Understanding the impact of diet on medical conditions
  • Making dietary recommendations to meet the specific needs of patients suffering from different illnesses
  • Suggesting dietary modifications based on a patient's health history

Nutrition and Fitness

Familiarizes students with the relationship between diet and energy, as well as physical performance.

Skills and Knowledge Gained

  • Determining someone's body fat composition
  • Distinguishing different dietary supplements
  • Understanding the dietary needs people have before, during and after exercising

Foods for a Healthful Lifestyle

Describes how eating habits contribute to a healthy lifestyle.

Skills and Knowledge Gained

  • Preparing food in a healthy way
  • Understanding the health benefits of different nutrients
  • Using different food technologies

Bachelor's Degrees

Bachelor of Science degrees in nutrition, which commonly take four years to complete, are required for those who want to become registered dietitians. In addition to taking general education courses, students will study nutrition at a more in-depth level than they would in an associate degree program. Students in this program gain a solid foundation of nutrition theory, along with a hands-on look at how it works in practice when dealing with patients. This program also provides an understanding of how to educate a community about the importance of good eating habits, as well as the ever-changing relationship between nutrition and societal factors such as culture and socioeconomic status.

The following is an example of courses that bachelor's degree students may take during their tenure in this program.

Cultural and Social Aspects of Food

Provides an overview of the relationship between culture and eating habits.

Skills and Knowledge Gained

  • Developing an understanding of different ethnic groups
  • Preparing recipes that are popular in different cultures
  • Understanding the ingredients used in different regions of the world

Introduction to Food Science

Focuses on the physical and chemical properties of food.

Skills and Knowledge Gained

  • Understanding how food is handled, prepared and stored
  • Preparing different foods to observe their physical and chemical properties

Introduction to Human Lactation

Gives students an understanding of the nutritional benefits of breastfeeding.

Skills and Knowledge Gained

  • Providing support to nursing mothers
  • Promoting the health benefits of breastfeeding
  • Understanding challenges associated with breastfeeding

Nutrition Counseling

Emphasizes how to conduct nutrition counseling for individual patients and groups.

Skills and Knowledge Gained

  • Developing verbal and nonverbal communication skills and applying them in different situations
  • Developing nutrition education resources

Master's Degrees

After graduating from a baccalaureate program, some students may want to broaden their knowledge and advance their skills by enrolling in a Master of Science nutrition degree program, which generally takes about two years of full-time study to complete. These programs are designed for practicing nutritionists and, unlike many bachelor's degree programs, allow students to focus on a specialty area. In many cases, there is also a heavy emphasis on understanding nutrition research.

Following are examples of coursework offered in nutrition master's degree programs:

Nutrition Research Methods

Provides information on how nutritional research is conducted.

Skills and Knowledge Gained

  • Understanding different research techniques
  • Analyzing research studies
  • Interpreting the results and implications of studies and experiments


Examines different kinds of communicable diseases around the world and how to prevent them.

Skills and Knowledge Gained

  • Understanding how diseases are spread
  • Communicating information about diseases to the public
  • Employing epidemiological statistics techniques

Eating Disorders

Investigates the behaviors and problems associated with disordered eating in adults and children.

Skills and Knowledge Gained

  • Recognizing eating disorders
  • Understanding obesity and disordered eating habits
  • Treating patients with eating disorders


Explores the use of statistics in understanding public health problems.

Skills and Knowledge Gained

  • Analyzing public health problems
  • Conducting population research
  • Applying statistical methods to healthcare issues

Doctoral Degrees

Nutritionist degree programs at the doctoral level are more focused on research, training students to contribute to the field by conceiving and conducting original nutrition studies. They also emphasize teaching, particularly at the postsecondary level. A doctoral degree can be ideal for professionals who want to become experts and advance in their careers, taking on managerial roles in either the public or private sector. After five to seven years of intensive study, depending on the program, students can expect to gain the following skills by the time they complete a doctorate in nutrition:

Scholarly research skills

Students learn an array of qualitative and quantitative research methods that are necessary to conduct studies on a variety of clinical nutrition topics. By the time they graduate, they will be able to design studies and carry out evidence-based research, as well as present their findings to the scientific community. In addition, these programs give students an understanding of research ethics, an issue that is especially important when dealing with human subjects.

Assessment skills

In order to provide care to patients, nutritionists must be able to make dietary assessments. Doctoral degree programs provide in-depth knowledge of how to assess a patient's existing dietary behaviors and habits, as well as identify current and future needs.

Clinical decision-making skills

Nutritionists must make informed decisions about the treatment their patients should receive. This may involve several factors, including not only their patients' physical health but also their mental attitudes. They use their understanding of nutrients, physiology and disease to craft an appropriate diet and implement an overall nutrition plan, as well as make adjustments as a patient's condition changes.

Communication skills

It's important for nutritionists to hone their verbal and written communication skills, since they may find themselves in roles where they are called on to educate the public about the importance of good nutrition. This entails taking complicated concepts and making them understandable and relevant to the general public, using a combination of scientific information and persuasion to convince a community of the importance of eating right.

Components of a Successful Career as a Nutritionist

Nutritionist Skills

In addition to an understanding of nutritional concepts, nutritionists must possess the analytical and problem-solving skills to apply what they learned in school to individual patients and their specific needs.

Nutritionists should also:

Nutritionist Credentials

The requirements to become a nutritionist vary from state to state. However, in most locations, nutritionists must complete a bachelor's degree, perform a certain amount of supervised, hands-on training, and pass a licensing examination. Although not required, many employers favor job candidates who have earned a Registered Dietitian Nutritionist (RDN) credential.

Some nutritionists also opt to earn a Certified Nutrition Specialist (CNS) credential, which allows them to demonstrate advanced knowledge of the field. In addition, there are a number of voluntary certifications that nutritionists can earn, which are awarded by organizations like The American Council on Exercise, the Holistic Nutrition Credentialing Board, the American Association of Nutrition Consultants, and the American Fitness Professionals & Associates.

Internship & Practicum Requirements

Many nutrition programs will also require that you complete an internship before you finish the course. These internships, just like internships in any major, will give you real-life, hands-on experience in the field. You actually may have multiple internships in different specialties, which is a great way to figure out exactly what type of nutrition you want to focus on.

Nutritionist Tools and Technology

Academic knowledge and hands-on training provide the foundation for a successful nutritionist career, while various tools and technologies allow these professionals to perform their job duties in the most effective ways. Some of the tools that nutritionists use in their practice include:

Such machines provide detailed and precise information about the body's condition and responses.

In addition, nutritionists also use scientific and medical software, such as:

These programs are designed to help nutritionists process client data to come up with a comprehensive and appropriate nutritional plan.

Related Wellness Careers

The following are some career options for those who want to help patients achieve positive health outcomes and live a healthy lifestyle.

Health educators
and community
health workers


Education and Training:

Bachelor's degree, internship

Registered nurses


Education and Training:

Bachelor's degree, supervised clinical experience



Education and Training:

Master's degree, internship

Food scientists and


Education and Training:

Bachelor's degree, internship

Fitness trainers


Education and Training:

Associate degree, supervised training

Agriculture and Food
Science Technician


Education and Training:

Associate degree, bachelor's degree, or relevant work experience

Home Health Aide


Education and Training:

No formal training required

Substance Abuse
and Behavioral Disorder


Education and Training:

Associate degree to master's degree; depends on job scope

Salaries for Related Careers

There are many rewarding careers in the health care industry, and individuals with an interest in how food and diet affects diseases or general health may also want to consider occupations related to nutrition careers. The following are some examples of these jobs.

Starting Your Career as a Nutritionist

After you've completed your coursework in nutrition (and perhaps earned a degree or two), you should get licensed. Having a license to practice nutrition (or as a dietitian) will show potential employers that you've studied all aspects of nutrition and have a demonstrated knowledge of how to work with clients. Your nutrition license will put you one step closer to becoming a registered dietitian (which will most likely require some fieldwork first before certification).

Once you have your license and specialty figured out, it's time to start looking for jobs in the area you've chosen.

What to Expect in the Job Environment

Nutrition jobs can vary widely based on what you choose to do. If you're a sports nutritionist, you might work with a local school or with a professional sports team — both very different jobs. You might work in a doctor's office and have a standard 9-to-5 job, or you might start your own nutrition business and make house calls. If you specialize in an aspect of nutrition that's a little more rigorous — like oncology or even pediatrics — your day might be more structured and more stressful because you're dealing with serious health conditions.

However, if you become a nutrition coach that focuses on helping people lose weight or a sports nutritionist who focuses on athletes' performance, your job might be a little more fun than stressful. With any job, though, you'll naturally encounter stress and pressure because you want to succeed, but nutrition can be extremely rewarding as you help people learn how to live healthy lives.

Related Careers at a Glance

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