DAA Spokespeople

Australian Capital Territory


New South Wales

Professor Clare Collins

PhD, BSc, Dip Nutr&Diet, Dip Clin Epi, AdvAPD AN

Areas of Interest: Children’s health, evidence based practice, weight loss and fad diets, family nutrition, cystic fibrosis, nutrition research methods.

Clare Collins is Professor of Nutrition and Dietetics, School of Health Sciences, Faculty of Health and Medicine and Deputy -Director of the Priority Research Centre in Physical Activity and Nutrition at the University of Newcastle. She is a Fellow of the DAAand represents us on Practice Based Evidence in Nutrition (PEN) internationally. She was a clinical paediatric dietitian for over 20 years at John Hunter Children’s Hospital.

Clare has a H-index of 25 and has published over 180 manuscripts. Her research evaluates the impact of interventions to improve dietary intake on changes in eating patterns, weight and health across all stages of life with a focus on using smart technologies..

She was a team leader on the systematic reviews behind the revision of the 2013 NHMRC Australian Dietary Guidelines. She served on the Australia and New Zealand (ANZOS) council for 6 years, with 2 years as Vice President (2007-08).

Prof Collins founded Healthe@UON, a technology network at the University of Newcastle in 2012 and is academic leader for their Global eHealth Research and Innovation Cluster

Professor Collins has been a DAA media spokesperson for 15 years with over 1000 media interviews to date. She has co-authored 5 books, has consulted to Channel 10 on numerous popular television programs.

Dr Trent Watson


Areas of Interest:
Obesity, diabetes, general nutrition, vitamin and mineral supplements, fad diets, men’s health, sports nutrition, nutrition and fatigue.

Trent started his adult life pursuing a professional rugby league career, but soon realised he would be a better dietitian. He is now the principal consultant dietitian of Ethos Health, a Newcastle-based multidisciplinary allied health business. Trent has completed a PhD at the University of Newcastle, which looked at oxidative stress, antioxidants and exercise. He is continuing his research interests in diabetes, workplace health with a special interest in fatigue.

Trent has extensive consulting experience. He has worked with a diverse range of individuals and groups from coal miners to elite athletes. Trent is a sought after speaker and media commentator and is passionate about providing accurate nutrition, health and lifestyle information that cuts the confusion and can be used in the real world. He has been a DAA spokesperson since 2001 and writes a regular column for Australian Men’s Fitness, among many others.

Dr Alan Barclay

BSc, Grad Dip Dietetics, PhD, APD AN

Areas of Interest: Metabolic syndrome, diabetes and pre-diabetes, overweight and obesity, food allergy and intolerance, food law.

Alan is the Chief Scientific Officer at the Glycemic Index Foundation, which licenses its Certified Low GI logo for use on healthy, low GI foods. Alan also works for Australian Diabetes Council as the Head of Research and sits on the Editorial Board of their and Diabetes Australia’s consumer magazines Diabetes Connect and Conquest and their health professional magazine Diabetes Management Journal. He has a PhD through the University of Sydney on carbohydrates and chronic disease risk.

Milena Katz

BSc(Nutrition)(Hons) BTeach, APD AN

Areas of interest: Women’s health, Children’s health, diabetes, metabolic syndrome, cooking, heart health, multicultural food habits and nutrition, weight management, aged care nutrition.

Milena is an APD and also a qualified high school science teacher. She is the founder of Ahead In Health, a Sydney-based private practice and nutrition consultancy. Milena works part-time within the Multicultural Health Service of NSW Health and has wide ranging experience in clinical nutrition and education of health care professionals. After more than ten years helping people make better food and lifestyle choices, Milena understands the stress that modern families have trying to navigate today’s food environment.

Milena is particularly passionate about the nutrition status of older adults especially those that are residents in aged care facilities.

Milena has an interest in women’s health, food and evolution, complementary medicine and anti-ageing. Milena is passionate about spreading the word on good nutrition for children and adults and her recent interviews as a DAA Spokesperson have included many national newspaper articles, magazines and radio programs. Milena has been a Spokesperson since 2008.

Dr Kellie Bilinski

BSc, M Nutr & Diet, APD AN, PhD

Areas of interest: Diet, lifestyle and cancer, obesity, healthy eating, research, complementary medicine, vitamin D and omega-3, food myths, food labeling, women and children’s nutrition.

Kellie is an Accredited Practising Dietitian and Nutritionist who has her own Private Practice in North Western Sydney. She has diverse experience in clinical dietetics, private practice, the nutrition industry and research. Kellie undertook her PhD at The University of Sydney’s Medical School on the role of vitamin D and metabolic factors such as insulin in cancer prognosis and has a special interest in the area of nutrition and cancer risk.

Kellie is regularly asked to give presentations to the public and health professionals and is interviewed by the media about diet and cancer, vitamin D, vitamin supplementation, diabetes, obesity and weight management.  Some of her recent projects include being an invited speaker at a national forum on breast cancer and being interviewed by ABC Canberra and for articles in The Sydney Morning Herald and Good Weekend, House and Garden and Diabetic Living.

Kellie is an energetic dietitian passionate about research into disease prevention through optimal nutrition and translating this into messages for the public and health professionals. She has written several papers that have been published in peer-reviewed journals and regularly writes factsheets and patient information about healthy eating, weight management, and diet and cancer.

Kate Gudorf

BA (Telecommunications), MSc (Nutr&Diet), APD AN

Areas of interest: General nutrition, wellness and prevention, food and cooking, obesity, weight loss and weight management, diabetes, and sports nutrition.

Kate is an Accredited Practising Dietitian working in private practice.  She also has experience in public health and corporate nutrition.  Kate has a keen interest in disease prevention and understands the benefits of leading a healthy, balanced lifestyle to prevent chronic health complications. Kate is passionate about promoting this message and enjoys working with both individuals and groups to encourage healthy eating behaviours and motivate lifestyle change.

Kate completed her tertiary education and dietetic placements in the United States (and is a US Registered Dietitian, as well as an APD). Prior to becoming a dietitian, she gained media experience working in radio, television and online marketing and promotions. Kate enjoys writing about current food, nutrition and health topics. She has been a DAA Spokesperson since early 2012. Her recent interviews include with Cosmo Pregnancy and Weight Watchers magazines.

Northern Territory

Natasha Murray

BSc, BAppSc (Human Mvmt), BND, Grad Cert Health (Diabetes Mgmt & Edu), APD, AN

Areas of Interest: Diabetes, breastfeeding, childhood nutrition, Indigenous nutrition, food allergies and intolerances.

Natasha is an Accredited Practising Dietitian and also a qualified Diabetes Educator. She commenced her dietetics career as a Public Health Nutritionist working in remote Indigenous communities in the Katherine region of the Northern Territory, and is currently employed as a clinical dietitian in Alice Springs. She has diverse experience in paediatric and adult dietetics.

Natasha has a keen interest in childhood nutrition and encouraging healthy eating habits early – and has two young food-lovers to nurture in this area! She believes in providing accurate and easy-to-understand nutrition information to the public and debunking nutrition myths, and has written articles for the Katherine Times newspaper.


Kate Di Prima

BSc, M Nutr & Diet, APD AN

Areas of Interest: Children’s nutrition, general nutrition, diabetes, weight management.

Kate has her own private practice in Brisbane. She has experience working with industry, corporations, hospitals, nursing homes and correctional centres.  Kate has a particular interest in childhood and family eating. In 2005, she published ‘The ultimate lunchbox and dinner meals for healthy kids’ and has since published two cookbooks.

Kate has been a DAA Spokesperson since 2003. She previously held the position of Media Liaison Dietitian with DAA. Kate regularly works with the media – both locally and nationally. She has appeared on Brisbane Extra, Sunrise and the Today Show and has recently been interviewed by the Herald Sun newspaper, Choice magazine, and ninemsn online. Kate writes a regular nutrition column for Practical Parenting magazine.

Julie Gilbert

Julie Gilbert_2014

BHSc(N&D), Bed(Human Movt), APD AN

Areas of Interest: Weight loss, diabetes, cholesterol, children and teenage nutrition, family health.

Julie has a private practice in Brisbane called Solutions with Food. As part of her business, Julie runs education sessions and shopping tours for private industry, schools and sporting organisations. She also designs and implements weight loss programs, and reviews school canteen menus. Julie is also the president of Sports Medicine Australia (Queensland), which enables her to promote nutrition to a wide range of health professions.

Julie has a background in teaching, which helps her deliver complex nutrition information in a simple way. Julie’s media experience includes newspaper, local and national radio, and television interviews. She has appeared regularly on A Current Affair and Today Tonight and is a regular contributor to Brisbane’s Courier Mail newspaper and ABC radio.  Julie has been a DAA spokesperson since 2005.

Maria Packard

BSc, Grad Dip Nutr & Diet, APD AN

Areas of Interest: Diabetes, children, healthy lifestyle, sports nutrition.

Maria is currently the nutrition manager for the Heart Foundation Queensland and lecturer at Queensland University of Technology. She has spent a significant amount of her career working with Diabetes Australia (Queensland), and running nutrition education programs for health professionals and the wider community, including school-aged children, catering and nursing home staff, and sports persons. Maria has been a member of various Queensland Health working groups and co-initiated the first DAA Diabetes Interest Group in Queensland.

Maria joined the DAA Spokesperson’s Program in late 2009. Her recent interviews have included with the Sydney Morning Herald, ABC Health online, and Women’s Health and Fitness magazine, to name a few. Prior to becoming a DAA Spokesperson, Maria was a regular contributor to the Diabetes Australia publication In Queensland.

Lauren McGuckin

BSc (Nutrition), Grad Dip. (Dietetics), APD, AN, DE

Areas of interest: Diabetes, general nutrition, food and cooking, recipe and menu development, fad diets

As an Accredited Practising Dietitian and Credentialed Diabetes Educator, Lauren is passionate about delivering practical dietary advice. Currently working in private practice, Lauren enjoys working with her clients to support them towards fostering lifelong healthy-habits and values a patient-centered approach to dietetic counseling.

Lauren has experience in many fields including bariatrics, private practice, weight and diabetes management and food service within correctional and immigration detention environments. Her work is strengthened by her love of cooking; and she shares her culinary skills and nutrition expertise through her blog and Facebook page and is the ‘recipe guru’ for Diabetes Queensland’s iQ magazine

Lauren has appeared on radio and contributed to media outlets such as Mamamia, The Glow, The West Australian, Ninemsn and Women’s Health and Fitness magazine. She highly values media involvement as an opportunity to communicate public health messages in an easy-to-understand and accessible way and to further promote dietitians’ as the leaders in nutrition.

South Australia

Tania Ferraretto


Areas of Interest: General nutrition, eating disorders, body image, fad diets.

Tania is the founder of Happy Healthy Me, an organisation dedicated to helping people develop a healthy relationship with food and healthy body image. She works with individual clients, schools, corporate clients, organisations and the media. Tania has a keen interest in eating disorders and eating behaviour.

Tania has worked in community health, clinical dietetics, with the food industry and in public relations and has been a DAA spokesperson since 1999. Tania has worked with media outlets across Australia including ABC Education TV, Today Tonight, The Australian, Australian Women’s Weekly, Cosmopolitan magazine and Good Health and Medicine magazine among many others. Tania has also contributed regular nutrition features to The Advertiser newspaper in Adelaide.

DAA's newest spokesperson Themis ChryssidisThemis Chryssidis

MND, Grad Cert Human Nutr, B Psych, Cert IV Personal Training, APD, AN, ASD

Areas of interest: Weight Loss; Eating Disorders; Diabetes; Gastrointestinal Conditions; Sports Nutrition and Workplace Health

Themis was born in Adelaide, South Australia. He has worked as a personal trainer and fitness coach for many individuals and sporting clubs and as a dietitian in a range of private practices and in various corporate settings. Themis regularly provides private and public nutrition presentations for businesses, associations and sporting organisations and expert advice to the media. 

In 2011, Themis and his business partner Callum Hann established their cooking school, Sprout and in 2015 they launched Sprout Health Studio where Themis practises as a dietitian along with other allied health professionals, including physiotherapists and psychologists. Themis is a result-focused dietitian with a love for good food and exercise and an innovative and driven dietitian.


Lisa Renn

MND, Grad Dip Nutrition, BAppSc (Phys Ed), APD AN

Areas of Interest: Overweight/obesity, behavior change therapies, diabetes, heart disease, children and family nutrition counseling, general nutrition.

Lisa has worked as a Community Health Dietitian for more than 12 years. She also runs a private practice ‘Body Warfare Nutrition’ and has recently published her first book ‘Body Warfare – the Secret to Permanent Weight Loss’. Lisa was a member of the working party which developed DAA’s ‘Best Practice Guidelines for the Treatment of Overweight and Obesity’. She is an Accredited DAFNE (Dose Adjustment for Normal Eating) facilitator, and has a background in secondary school education. Lisa is passionate about using behavioural therapy strategies to help patients achieve health outcomes.

Lisa has been a DAA Spokesperson since 2008. Her recent media interviews include for Women’s Health, Wellbeing and That’s Life magazines, Body + Soul, and The Age and the Herald Sun newspapers. She has been interviewed for numerous radio programs, as part of her role as a DAA Spokesperson, and has previously appeared on the Channel Nine programs What’s Good for You and A Current Affair.

Georgie Rist

BND (Nutr & Diet) APD AN

Areas of interest: Personalised health, nutritional genomics, vegetarian/vegan nutrition, food intolerances, weight management, detoxification, sports nutrition, gut and brain health.

Georgie is an Accredited Practising Dietitian and Accredited Nutritionist with expertise in business development, account management, sales, marketing and innovation. Georgie’s passion for health, fitness and whole foods began at an early age. Some would even say it is in her genes.

Georgie has an extensive and diverse background in the health industry, including running her own successful nutrition consulting business, launching and managing Australia’s first dedicated Nutritional Genomics dietetic clinic, leading and publishing malnutrition research, launching health retreats in Bali and personalising diets based on individuals’ genetic make-up; through to education and training, product development, sales, marketing, business development and operations, media communications and holding senior positions with a number of leading Australian health companies including Royal District Nursing Service, MyGene, Swisse Wellness and BioCeuticals.

Georgie recognises we all respond differently to food, exercise and environmental stresses and therefore, there is ‘no one size fits all’ when it comes to diet and lifestyle.

Georgie is currently the National Account Manager at Australian’s leading health and wellness company, BioCeuticals.

Simone-Austin-webSimone Austin

BSc, MND, APD, Accredited Sports Dietitian

Areas of Interest: Sports Nutrition, General consultancy, Health promotion, Food product development, Aged care, Working with the media.

Simone has over 20 years experience working with athletes from recreational to the elite level. Commencing at the Western Bulldogs AFL team, moving onto the Australian Men’s Cricket team and then back to AFL currently into her 7th season with Hawthorn Football Club. During this period she also worked with Melbourne City in the A League, Melbourne Storm Rugby League and Melbourne Rebels Rugby Union clubs and some Olympic swimmers. She is a member of the Sports Dietitians of Australia Board and loves the drive for improvement that sport brings.

Simone has had her hand in many areas of nutrition having worked in the fields of community nutrition and health promotion, managing a community health team. Corporate wellbeing and nutrition lectures are a current passion along with working with food companies to provide good quality nutritious food. She runs a private practice and provides aged care visits, whilst working with Swisse Wellness part time. Over the years she has written numerous magazine articles, completed radio interviews, television stints and enjoyed involvement with the television series, The Recruit, ensuring nutrition was on the agenda.

Simone likes to spread the nutrition message and passion for food as an important part of life, to as many people as possible.

Western Australia

Charlene Grosse

BSc, (Nutr & Food Sci), Post Grad Dip Diet, APD AN

Areas of Interest: Gastrointestinal Disease, IBS, food intolerances, FODMAPs, Bariatric (obesity) surgery, fad diets & the non-diet approach to weight management.

Charlene has diverse experience in both the private hospital (Manager Dietetics and Social Work) and private practice settings. She and is the principal dietitian of Specialised Nutrition Care, a Perth dietetic practice specialising in oncology, gastrointestinal disorders, FODMAPs and bariatric surgery. She is well respected for her expertise as a bariatric and gastrointestinal dietitian. Charlene was a key driver in establishing the WA bariatric dietitans working group and the DAA National Bariatric Interest Group and was recently awarded the Dietitians Association of Australia Award of Merit (WA Branch) for her work in this area.

Charlene is passionate about helping people understand the practical dietary management of diseases through a person-centered, individual approach.

Charlene has been a DAA Spokesperson since 2012. Her recent recent interviews as a DAA Spokesperson have included many national newspaper articles, magazines and radio programs and has previously featured on the Channel Nine news.

Margaret Hays

BSc Post Grad Dip Dietetics, Post Grad Dip Diabetes Ed, APD AN

Areas of Interest: General nutrition, diabetes, weight loss, family eating.

Margaret works in private practice in Perth. She consults to individuals, industry and corporations, and also writes nutrition education material. Margaret has previously worked as a nutrition consultant in Asia, and she is a qualified diabetes educator.Margaret has been a DAA spokesperson since 2004. She is able to translate nutrition science into practical information for the public and does so in a very personable way.

Margaret has worked with national television, including news and current affairs programs, and radio, such as Triple J’s Hack program, a national current affairs program that runs each weekday. She is frequently quoted in the West Australian newspaper, and has recently been interviewed for Good Health magazine and ninemsn online.