Stefanie Valakas The Dietologist Fertility Dietitian



  • Accredited Practising Dietitian & Accredited Nutritionist - Dietitians Australia
  • Master of Nutrition & Dietetics - The University of Sydney
  • Bachelor of Science (Advanced) (Nutrition & Metabolism) - The University of Sydney
  • Nutrition Therapy for Fertility & Pregnancy Course by Nutrition Plus

Hi! I am Stefanie, I am an Accredited Practising Dietitian & Nutritionist and the director of The Dietologist, based in Sydney, Australia.

I help women (just like you!) take control of their lifestyle and transform their diet to improve their fertility.

I started my journey into women's health and fertility nutrition after starting my work as a dietitian in children's nutrition, learning how to start children off on the very boost foot with healthy habits and a balanced relationship with food.

I thought I was getting in early by working with children...

Until I learned about early life nutrition, which spans the first 1000 days of life from the 3-6 months before a child is even conceived (when the egg and sperm are maturing inside mothers and fathers), up to a child's second birthday.

What children eat, drink and are exposed to from the time they were just two cells to the time they are asking "but why, Mama?" can literally change the way your child's genetics are being read and even affect their risk of chronic health conditions in later life, such as diabetes, obesity, heart disease, allergies & eczema.

And it all begins with women and men nourishing themselves well in advance of parenthood.

In fact, being a responsible parent starts well before you are bringing baby into your perfectly designed nursery...

I also began to read up on the research, that making a few simple (but effective) dietary changes in the months leading up to conception can have a significant impact on fertility success, by about 69% in fact! 

All these dietary strategies and more are covered in my 4-week online program, The Waiting Game 

Pretty mind-blowing, right?

I also work with women with various hormonal concerns such as PCOS, endometriosis, restoring regular periods and ovulation (amenorrhoea), thyroid issues, primary ovarian insufficiency and gut health concerns such as irritable bowel syndrome.

For the gents, I help support optimal sperm health through lifestyle changes which can really transform sperm results in a matter of months, in my Signature Pre-conception Nutrition Program for couples.


If you're thinking about your current or future fertility and wanting to take control of the aspects you can change like your diet (unlike your age or medical history) then you are in the right place.

Ready to take the next step?

Apply to Work with Me


Kaylee Slater APD Fertility & Pregnancy Dietitian The Dietologist


  • Accredited Practising Dietitian & Accredited Nutritionist - Dietitians Australia
  • PhD Candidate - Doctor of Philosophy (Nutrition and Dietetics) - The University of Newcastle
  • Bachelor of Nutrition and Dietetics (Honours Class I) - The University of Newcastle
  • Nutrition Therapy for Fertility & Pregnancy Courses by Nutrition Plus

Kaylee Slater is an Accredited Practising Dietitian & Nutritionist and dietitian at The Dietologist, based in Sydney, Australia.

Kaylee is one of the most determined dietitians I have seen in the space of women's health, pre-conception and pregnancy nutrition! I've had the pleasure of working alongside for a number of years now, and have been directly involved in her mentoring and training in the space of women's health, fertility and pregnnacy nutrition.

She is absolutely determined to help as many women and their families to optimise their health and nutrition before, during and after pregnancy. 

Just like me, Kaylee knows that what you eat before conceiving plays a direct role in your child's future risk of some of the most common lifestyle-related conditions we face in modern society including asthma, allergies, type 2 diabetes, heart disease and obesity.

Kaylee is an expert on all things pre-conception and pregnancy nutrition, having published her work in 2020 showing that scarily, the majority of pregnant women are not meeting their requirements for critical nutrients from folic acid to iodine, zinc to fibre!

Read Kaylee's published article on pregnancy nutrition here.

Alongside her work here at The Dietologist, Kaylee is also pursuing a Doctor of Philosophy (PhD), investigating the impact that diet and lifestyle changes can have on preventing heart disease amongst women who experience high blood pressure or pre-eclampsia in their pregnancies.

So as you can see, Kaylee is truly on a mission to teach women about the importance of their diet before, during and after pregnancy - which is what we are all about here at The Dietologist! Kaylee's compassionate, caring and practical approach will ensure you are feeling supported from the day you decide to grow your family, until your bundle of joy arrives and beyond!

Want to chat with Kaylee?

Book your initial consultation with Kaylee today.



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Please note that the views and opinions of The Dietologist and its team does not reflect the views and opinions of The a2 Milk Company or Perdays.