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Home / Lifestyle

Nutritionist Claire Turnbull on ending destructive food cycles

By Claire Turnbull
NZ Herald·
31 May, 2025 02:00 AM5 mins to read

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Nutritionist Claire Turnbull's new book End Your Fight With Food: How to Change Your Eating Habits For Good is published on June 1.

Nutritionist Claire Turnbull's new book End Your Fight With Food: How to Change Your Eating Habits For Good is published on June 1.

  • Claire Turnbull shares insights from her 20-year struggle with food in her new book.
  • Key lessons include recognising emotional eating triggers and permitting yourself to eat without guilt.
  • Turnbull emphasises the importance of sleep, environment, and positive self-talk for a healthier relationship with food.

Warning: This story deals with themes of suicide and disordered eating. Helpline information is provided at the end of the story.

Do you find yourself stuck in a cycle of trying to “eat better” and “be healthier” but not being able to keep on track? Feeling like a failure, frustrated, and caught in a rut of shame and self-blame? Or maybe you’re overwhelmed by conflicting advice, endless food rules, and mixed opinions about what’s healthy? 

If you’re fed up with it all, I hear you. 

For the last 15 years of my career, I’ve worked with people to help them improve their relationship with food, their bodies and themselves, after my destructive battle with food for more than 20 years. 

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Growing up, I watched my mum go on and off diets and, at about the age of 9, after being called chubby by my dance teacher, I picked up one of my mum’s diet books and started following the rules myself – counting calories and avoiding anything with fat because “low-fat” was all the rage back then. 

What started as a way to gain control in a difficult time – being bullied and struggling to make friends – quickly spiralled. I found myself caught in a painful cycle of restriction and bingeing. I’d eat almost nothing one day, then lose control and binge on cereal, Nutella and ice cream.

Nutritionist Claire Turnbull struggled with disordered eating for more than 20 years.
Nutritionist Claire Turnbull struggled with disordered eating for more than 20 years.

Things got so bad that I reached a point where I planned to end my life. Fortunately, a friend intervened. I started antidepressants at 19, finished university, and made the big decision to move to New Zealand. I hoped a fresh start would fix things, but my problems followed me, and I needed to find a better way to manage what I was dealing with. 

Since that point, I have been on a wild journey of self-discovery and have fully immersed myself in the study and exploration of what it is that makes us who we are, and why we eat and behave the way we do. What I have learnt on this journey is what I share in my new book End Your Fight with Food.

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Here are some of the key things I learnt to help you get started:

What is driving your choices? 

There are many reasons why we eat and drink that have nothing to do with needing food or wanting a drink. It’s so common to eat when we are bored, tired, angry, frustrated or feeling lonely. Alcohol is also a reward that we turn to when something goes well, or just as a result of getting through the milestone of completing another day of life and walking through the door after work. In my book, I aim to help you work through all the reasons why you eat and drink when you do, to reprogramme your habits so you can get things back on track without needing to follow a strict diet or give up all the foods you love.

Permission to eat

Diet culture has convinced us that we need to restrict, avoid, and follow strict rules to be healthy. That is so far from the truth. We should focus on eating to nourish body and mind, with an emphasis on what to “add in” rather than what to cut out. 

End Your Fight With Food: How to Change Your Eating Habits For Good is published on June 1.
End Your Fight With Food: How to Change Your Eating Habits For Good is published on June 1.

Honour hunger and fullness

Many of us were raised to finish everything on our plates, even when we weren’t hungry, which can create a disconnection from our natural hunger and fullness signals. Learning to recognise and respect these signals is a crucial step towards a healthier relationship with food. 

Access and environment matter

We are far more likely to choose the first thing we see or the easiest option. If healthy choices are easily accessible – like having veggies prepped or gym gear ready – we’re more likely to make them.

It’s about more than just food

True wellbeing goes beyond what’s on your plate. Sleep, movement, stress management, and a sense of meaning and purpose all play a role. As does having a connection to other people. In my work, I use a “Wheel of Wellbeing” – a framework for finding balance in every area of life to help keep well in our busy modern world. 

Poor sleep impacts everything

When you are tired, it’s harder to regulate your appetite and your emotions. You’re also more likely to crave sugar and salty foods. Sleep deprivation drives the stress cycle and makes everything harder.

How you talk to yourself matters

You will never hear another voice more than you hear your own “inner voice”. If that voice is critical and harsh, it can fuel destructive patterns with food and beyond. Learning to change that inner dialogue is a powerful step and an essential part of the process of building a healthier relationship with food and yourself. 

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Life is too short to spend another day at war with yourself.

Claire Turnbull is a registered nutritionist with a diploma in positive psychology. She is the founder of Mission Nutrition and the author of two previous books on wellbeing. Her new book, End Your Fight with Food: How to Change Your Eating Habits for Good, is published by Allen & Unwin, RRP $36.99.

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