Hayley Cullen-Xiang
Perth Fertility Dietitian & Accredited Practising Dietitian
Specialising in fertility nutrition, pre-conception, IVF support & gut health — Wembley, Perth
ACCREDITED PRACTISING DIETITIAN (APD) | FERTILITY NUTRITION SPECIALIST | MEDICAL RESEARCHER (MSc)
Hayley Cullen-Xiang is an Accredited Practising Dietitian and specialist fertility dietitian based in Perth, consulting from Genea Perth in Wembley — one of Western Australia's leading IVF and reproductive medicine clinics. She specialises in fertility and pre-conception nutrition, IVF dietary support, gut health, and the gut microbiome, and brings a scientific rigour to her clinical work that is genuinely rare in private practice dietetics.
What makes Hayley exceptional is her background. Before becoming a dietitian, she spent over seven years as a medical researcher and laboratory manager, primarily in the field of developmental biology. That scientific foundation gives her an exceptionally deep understanding of the biological mechanisms underlying fertility, early pregnancy, and the gut-hormone connection — and means her nutrition advice is always rooted in the strongest available evidence.
Hayley's career in research was distinguished. As lead Perth researcher on an international scientific project, she contributed to the discovery of a new genetic brain disorder in newborns — a career highlight that speaks to the level of scientific rigour she brings to everything she does. Her original training in microbiology sparked a lasting fascination with the gut microbiome, which now sits at the heart of much of her nutrition work with fertility and women's health clients.
Becoming a dietitian was a deliberate pivot — a decision to take everything she had learned at the bench and apply it directly to people's lives. As Hayley puts it: "Becoming a dietitian allows me to tie together my scientific background with my desire to have a direct and meaningful impact on people's lives." For her clients, that combination of deep scientific knowledge and genuine human connection is a rare and powerful thing.
"Becoming a dietitian allows me to tie together my scientific background with my desire to have a direct and meaningful impact on people’s lives"
Hayley works with women and couples at all stages of the fertility journey — from those just beginning to think about starting a family, to those undergoing IVF or other assisted reproductive technologies, to those managing conditions like PCOS and endometriosis that affect fertility. Her approach is always thorough, personalised, and evidence-based.
In practice, this means looking well beyond a standard dietary assessment. Hayley explores the role of the gut microbiome in hormonal health and fertility outcomes, assesses key fertility nutrients including folate, iodine, omega-3s, vitamin D, and iron, and builds practical pre-conception nutrition plans that are realistic and sustainable for couples navigating often stressful and emotionally demanding fertility journeys.
For clients undergoing IVF treatment at Genea Perth, the convenience of seeing a specialist fertility dietitian in the same building as their reproductive team means care is genuinely seamless and coordinated.
Hayley consults from Genea Perth, Level 2, 190 Cambridge Street, Wembley WA 6014 — conveniently located for clients from Floreat, City Beach, Wembley, Subiaco, Nedlands, Claremont, and the inner northern suburbs of Perth. Telehealth appointments are also available for clients across Western Australia and Australia-wide, making Hayley's specialist fertility nutrition expertise accessible no matter where you are.
All major private health funds are accepted, and Medicare EPC rebates are available for eligible clients referred by their GP on a Chronic Disease Management plan.
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