Licensure and Professional Regulation of Dietitians

Updated November 23, 2021

Currently 48 states, Puerto Rico and the District of Columbia have statutory provisions regulating the dietetics profession or associated titles such as "dietitian" and "nutritionist." The Academy is dedicated to protecting consumers by maintaining existing dietetics licensure laws and enacting or strengthening licensure laws in states that lack sufficient regulations to protect the public.

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Importance of Professional Licensing to Protect Consumers

Our consumer protection efforts ensure that consumers are able to identify and access qualified professionals who demonstrate the knowledge, skill and competency necessary to provide safe and ethical nutrition therapy. As the public increasingly understands the importance of good nutrition, some individuals without any formal education, training or expertise in human nutrition or dietetics are exploiting this newly recognized market.

States' professional licensing laws help consumers identify who is a qualified practitioner to provide a particular set of specified services, known as the profession's scope of practice. Some individuals are not qualified for licensure because they lack the objective accredited education, experience and examination demonstrating their competency to provide services within the regulated profession's scope of practice. The Academy shares elected officials' interest in supporting licensure to prevent harm for our communities, workplaces, families and friends. This means protecting against unsafe or inaccurate nutrition counseling or interventions that may lead to poor or even dangerous health outcomes — and unnecessary, expensive products or services.

In addition to helping the public identify and access qualified practitioners, licensure often provides health insurance companies and state and federal governments with the assurance that these practitioners meet standards of professional competence in order to be reimbursed for providing nutrition care services. In states without licensure, other nutrition professionals or paraprofessionals may be reimbursed for nutrition services despite meeting only some of the qualifications required to become a registered dietitian nutritionist.

The Academy supports professional licensure for RDNs and other qualified nutrition professionals to protect the public by enforcing objective standards in education, work experience and exams. These standards ensure competency to provide complex care, such as medical nutrition therapy. Requirements to become a licensed dietitian nutritionist in most states are generally similar to those required to become a registered dietitian nutritionist.

As noted in the map and table linked below, many states have adopted licensure laws and regulations specifying the minimum credentials required to (1) use various titles, such as "dietitian," "nutritionist," "licensed dietitian nutritionist" or "registered dietitian nutritionist" and (2) provide MNT or other dietetics and nutrition services. Other states take a less protective approach, such as regulating the practice of licensed RDNs and other nutrition service providers, and offering licensees the ability to use certain protected titles — but stopping short of limiting who can provide complex nutrition care services to patients, clients, and other consumers. These different levels of consumer protection are discussed in more detail below.

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Overview of Types of State Regulation of Food, Nutrition, and Health

State governments play a vital role in creating and implementing policies that serve and protect the public. In the areas of food, nutrition and health, states may:

  • inspect or certify some food establishments and food products
  • administer programs that provide food assistance and nutrition education to individuals and families
  • establish educational standards and wellness policies for schools
  • administer public health programs
  • regulate nursing homes
  • oversee insurance programs
  • ensure many residents have coverage for important health care needs.

States also license healthcare providers such as physicians, dentists, pharmacists, and dietetics and nutrition professionals to ensure that individuals providing health and personal services have met high objective education, experience and examination requirements.

To protect the public, the majority of states have enacted laws that regulate the practice of dietetics. State licensure and state certification are entirely separate and distinct from the registration or credentialing RDNs and NDTRs obtain from the Commission on Dietetic Registration or the “certification” provided by private "certifying bodies." State regulation of dietetics and nutrition comes in one of three names, although there is some substantive overlap in what is regulated between each form.

State Regulation of Food, Nutrition and HealthTypes of state regulation

  • Licensure: A state agency issues a license to individuals who meet specified qualifications to practice a particular profession. Licensing statutes for dietetics and nutrition always include a title protection provision, which is designed to prevent unlicensed individuals from holding themselves out to the public as dietitians, nutritionists, or using other titles as specified in the statute. (“Hold oneself out” means to knowingly or recklessly take or use a title, name, symbol, word or description that indicates or could be reasonably understood to indicate the person is a dietitian or nutritionist, or the person is authorized or qualified to practice dietetics or nutrition.) Most states that license the practice of dietetics and nutrition also include a practice exclusivity clause, which limits the ability of unlicensed individuals to provide services within the defined scope of practice for the regulated profession.
  • State Certification: A state agency certifies that individuals with specified credentials are qualified to practice a particular profession and also ensures that those certified individuals are held to established standards of practice. Certification statutes include title protection provisions, but not practice exclusivity provisions — meaning that although only individuals certified by the state may hold themselves out as dietitians, nutritionists or use other titles as specified in the statute, uncertified individuals can still practice the regulated profession.
  • Title Protection: As with certification, this least protective form of state regulation permits anyone to practice the profession, but only individuals with specified qualifications or credentials (such as the RDN credential) may hold themselves out as dietitians, nutritionists, or use other titles as specified in the title protection statute. However, there are no established standards of practice or ethics established or regulated by the state.

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Key Issues and Resources

Overlapping Scopes of Practice
It is not uncommon for two or more professions (particularly in healthcare fields) to have certain overlapping elements of their scopes of practice. For example, RDNs, nurses and pharmacists all deliver Diabetes Self-Management Training, which is within their respective scopes of practice and in line with their respective training and qualifications.

Sometimes a member of one profession will go beyond their scope of practice and engage in activity for which they are not qualified. Often referred to as “scope creep,” this can be dangerous and put patients and clients at risk of harm. The Academy believes that the provision of medical nutrition therapy and other complex dietetics and nutrition services should only be provided by individuals who have at minimum the specialized training and competencies of RDNs. Therefore the Academy works with other disciplines practicing in the nutrition space — such as physicians, chiropractors, pharmacists, certified nutrition specialists, naturopaths, health coaches and others — on various legislative and licensure activities. When appropriate and necessary, the Academy provides feedback and testimony to legislative bodies to ensure MNT is exclusively provided by licensed professionals who have, at minimum, met the standards of an RDN.

State and Federal Facility Regulations
State and federal statutes and regulations may specifically require or exempt licensure or an RDN credential in order to practice. Additionally, individual facilities may have their own standards beyond those based in law.   Qualified nutrition practitioners are encouraged to consult their specific statutes and/or facility policies for clarification.

Collecting Stories of Success and Adverse Events
Although professional standards of practice and existing consumer protection laws are effective in keeping the number of incidents of harm low, it is crucial to document instances when a consumer has reported harm — either directly to one of our members or through the media or courts. This documentation demonstrates to state legislators the risks of failing to sufficiently protect consumers from incompetent or unethical providers who practice in states without sufficiently strong licensure laws that include an exclusive scope of practice for licensed dietitian nutritionists.

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Additional Licensure Resources from the Academy

The Consumer Protection and Licensure Subcommittee guides the strategy of the Academy of Nutrition and Dietetics’ advocacy and public policy work in the area of consumer protection and licensure, consistent with the mission and vision of the association.

State Licensure Agency Map and Contact List
Find licensure information about individual states using the Academy's licensure map or by viewing its licensure spreadsheet.

CMS Rules on Therapeutic Diet Orders
The Center for Medicare and Medicaid Services rules regulating the ordering of therapeutic diets in various facilities (such as acute care hospitals, Critical Access Hospitals and long-term care facilities) allow RDNs to order diets in accordance with state law and facilities’ policies and procedure approvals. The Academy has prepared state-by-state guidance documents for hospitals and for long-term care facilities.

Consumer Protection Issue Brief and Leave Behind
In the Issue Brief, review detailed background information on consumer protection concerns, the need for licensure laws, and the various methods by which states regulate the practice of dietetics and nutrition and the provision of medical nutrition therapy, and utilize its one page synopsis as a Leave Behind when meeting with state and federal policymakers about consumer protection and professional regulation issues.

Licensure 101 Recording

Organized by the Academy's Consumer Protection and Licensure Subcommittee, the “Licensure 101: A Personal Introduction to Licensure” presentation highlights the importance of licensure across RDN practice areas. View the Licensure 101 recording.

Licensure 102 Recording

Have you ever wondered why states have dietetics licensure? Or what you can do to advocate to strengthen consumer protection? Presented by the Academy’s Consumer Protection and Licensure Subcommittee along with participation of Academy student members from across the country, “Licensure 102: Protecting the Public and Elevating Our Practice,” highlights the importance of licensure in protecting the public, how to navigate the different types of state-based dietetics licensure and where to find and use valuable Academy resources, including the Incident Reporting Tool. View the Licensure 102 recording.

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