Bridget Davis has cooked for Oprah, Prime Minister Jacinda Ardern and the London Times describes her eggs as "the best in the world".
She has over 20 years' experience working in professional kitchens and recently has achieved a stunning weight loss.
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"I've lost 30kg in just over five months... and by the way, I have not exercised," Davis told The AM Show.
The secret to her healthy new lifestyle is eating better foods - but not sacrificing taste.
"I put flavour first," says Davis.
"When you start eating healthy, you may have preconceived ideas that eating healthy food tastes a bit like cardboard. As a chef, I started to look at food from a chef's perspective, making sure it's delicious first and just happens to be healthy.
"Then it doesn't even feel like you're on a diet."
Bridget Davis' top tips for losing weight:
- Cutting out gluten, especially bread or anything with white flour in it
- Cutting out sugar
- Reducing the amount of dairy
- Start the day with protein, like chicken or eggs
- Lunch should be the largest meal of the day and include protein
She also says that you shouldn't be too strict with your diet - cutting loose on weekends can be OK.
Davis says she used to feel moody and depressed, but since changing her eating habits feels amazing.
"As a middle-aged woman with three children, I thought being overweight was just part of life. Now that I realise that I was just putting the wrong things into my body and have taken those out of my diet, I have more energy than I've ever had, my mood swings have elevated."
"I look at life so differently - I've written three cookbooks in a year and a half, that's how much energy I have!"
Davis' latest book is Bridget's Healthy Kitchen.