If you're looking for nutrition advice, you may have come across dietitians, nutritionists, nutrition coaches and other nutrition professionals offering seemingly similar services.
So what's actually the difference between a dietitian and a nutritionist in Australia?
The key differences come down to qualifications, professional credentials and scope of practice.
Dietitians are university-qualified health professionals trained in food, nutrition and dietetics, including the use of nutrition therapy to support people with health conditions. An Accredited Practising Dietitian (APD) has also met the credentialing requirements set by Dietitians Australia.
The term nutritionist is broader and can be used by people with different types and levels of nutrition education, so qualifications can vary considerably.
That doesn't mean one title automatically tells you whether someone is the right practitioner for you. What matters is understanding their qualifications, scope of practice and whether their expertise matches the support you need.
Let's look at the differences in more detail.
All dietitians are nutritionists,
but not all nutritionists are dietitians.
What Is a Dietitian?
A dietitian is a university-qualified health professional with training in food, nutrition and dietetics.
Dietitians work across many areas of health and healthcare, from general healthy eating and preventative health through to managing complex nutritional needs and providing medical nutrition therapy.
This can include nutrition support for conditions such as diabetes, cardiovascular disease, gastrointestinal conditions, food allergies and intolerances, malnutrition and other health concerns.
Dietitians work in many settings, including hospitals, private practice, aged care, community and public health, research, food services and industry.
In Australia, dietitians have completed an accredited dietetics qualification or an approved pathway recognising equivalent overseas training.
All dietitians are nutritionists, but not all nutritionists are dietitians.
What Does APD Mean?
APD stands for Accredited Practising Dietitian. It is the national credential managed by Dietitians Australia.
To hold APD status, a dietitian must meet Dietitians Australia’s credentialing requirements and maintain ongoing professional practice and continuing professional development.
APDs also adhere to Dietitians Australia’s Code of Conduct, and dietitians have the knowledge and skills described in the National Competency Standards for Dietitians.
The APD credential helps consumers identify dietitians who meet recognised standards for qualifications, professional practice, ongoing education and professional conduct.
APDs can work across both general nutrition and more complex areas of healthcare, including providing medical nutrition therapy when appropriate.
APD status is also relevant to some healthcare funding and rebate arrangements, including Medicare pathways where eligibility and referral requirements are met.
What Is a Nutritionist?
A nutritionist is someone who provides advice about food, nutrition and healthy eating. However, in Australia, the title “nutritionist” is not regulated, which means the qualifications and training behind the title can vary.
Some nutritionists have completed university degrees in nutrition or nutrition science and may belong to a professional organisation. Others may have completed shorter courses or hold qualifications in related areas.
This makes it important to check a nutritionist's actual qualifications, professional membership and scope of practice, rather than relying on the title alone.
Nutritionists may work across areas such as public health, community nutrition, research, food industry, education and private practice.
The key distinction is that completing a nutrition qualification alone does not make someone a dietitian or an Accredited Practising Dietitian. Dietitians have additional education and practical training in dietetics, including medical nutrition therapy and the management of nutrition-related health conditions.
Dietitian vs Nutritionist: Key Differences
Dietitian / Accredited Practising Dietitian (APD)
A dietitian has university-level qualifications in nutrition and dietetics, including training in medical nutrition therapy and working with nutrition-related health conditions.
An APD also:
meets Dietitians Australia’s credentialing requirements
undertakes ongoing professional development and practice requirements
adheres to professional standards and a Code of Conduct
can provide medical nutrition therapy within their scope of practice
may provide eligible Medicare-funded dietetic services when referral and eligibility requirements are met
Dietitians can also provide general nutrition and healthy eating support. You don't need to have a diagnosed medical condition to see a dietitian.
Nutritionist
The qualifications behind the title nutritionist can vary considerably. Some nutritionists have university degrees in nutrition or nutrition science, while others may have completed different forms of nutrition training.
Depending on their qualifications and scope of practice, nutritionists may work in areas such as healthy eating, public health, community nutrition, research, education, food industry and private practice.
A nutrition qualification alone does not qualify someone as a dietitian or make them eligible for APD status.
The key difference isn't simply the title. It's the qualifications, clinical training, professional standards and scope of practice behind it.
Which One Is Right for You?
The right choice depends on why you're seeking nutrition support and the level of care you need.
A suitably qualified nutritionist may be a good fit if you're looking for general nutrition education or healthy eating support within their area of expertise.
An Accredited Practising Dietitian (APD) may be particularly appropriate if you:
have a diagnosed health condition or complex nutritional needs
take medications that may affect your nutrition or health
experience ongoing digestive symptoms or food intolerances
need support with nutritional deficiencies or meeting specific nutrient requirements
are navigating changing health needs through stages such as perimenopause, menopause or healthy ageing
want personalised nutrition support that considers your health history alongside your diet and lifestyle
You don't need to wait until something is “wrong” to see a dietitian. APDs can also help with preventative health, improving dietary quality and understanding how to eat well for your individual needs.
Whichever professional you choose, check their qualifications, experience and scope of practice to make sure they are appropriate for the support you're looking for.
FAQ's
Is a dietitian the same as a nutritionist?
No. All dietitians are nutritionists, but not all nutritionists are dietitians. Dietitians have specific university-level training in nutrition and dietetics, including medical nutrition therapy. The qualifications behind the title nutritionist can vary.
What is the difference between a dietitian and an Accredited Practising Dietitian (APD)?
A dietitian has completed recognised dietetics training. An APD has also met Dietitians Australia’s credentialing requirements and maintains ongoing professional practice and development requirements.
Do I need a medical condition to see a dietitian?
No. Dietitians can support people with medical and complex nutritional needs, but they also work in preventative health, healthy eating and improving overall nutritional adequacy.
Should I see a dietitian or nutritionist?
It depends on your needs and the practitioner's qualifications. If you have a health condition, medications, complex nutritional needs or require medical nutrition therapy, an APD may be the more appropriate choice. For general nutrition support, a suitably qualified nutritionist may also be appropriate.
Looking for Personalised Nutrition Support?
I'm Lena Anson-Smith, an Accredited Practising Dietitian (APD) and founder of Tailored Dietetics. I provide one-on-one online consultations for women across Australia.
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Last updated: 7 October 2026