About Fiona Halar

I’m Fiona Halar. A vegan dietitian, nutritionist and exercise scientist.

I believe that our lifestyle choices can have a profound effect on our health, our planet and all who inhabit it. That’s why I’m committed to helping others lead a healthy, ecologically sustainable and compassionate lifestyle.

As a health professional, my goal is to help others make healthier diet and lifestyle choices, with nutrition and exercise advice backed by evidence-based science.

I’m also a PhD candidate at the University of Sydney. My doctoral research investigates the health and lifestyle behaviours of Masters Athletes.

My story

I wasn’t always passionate about leading a healthy vegan lifestyle.

I used to work in the corporate world and lived a sedentary lifestyle. I was overweight. I rarely got enough sleep or exercise. My job was stressful and I often worked long hours. My diet mostly consisted of takeaway and processed foods.

I thought I was invincible, but eventually my health deteriorated. My frustration grew as I battled chronic illness and fatigue. I had some good days, but mostly I was exhausted. I couldn’t work any more.

So I did something radical — I changed my lifestyle. I went vegan, started exercising and went back to university to learn more about leading a healthy lifestyle. I lost weight, my health improved and I discovered I had lots of energy. I also learnt about how our lifestyle choices can impact the lives of animals and the environment, and I decided I’d be vegan for life!


  • Master of Nutrition and Dietetics
  • Bachelor of Applied Science (Exercise and Sports Science)
  • Advanced Diploma of Nutritional Medicine

Professional memberships