In this article Queensland Specialist Weight Loss Centre’s dietitian and nutritionist Vanessa Jenkin explains the role of nutrient quality in weight management.
We’ve all heard the phrase: “Losing weight is just about calories in versus calories out.” And while that might sound simple, many people find that counting calories doesn’t always lead to lasting results. If that’s been your experience, you’re not alone — and there’s a good reason for it.
Weight regulation is about more than just calorie quantity.
The quality of those calories — and the nutrients that come with them — plays a huge role in how your body responds to food, how full you feel, and how easily you can manage your weight.
For example, diets rich in fibre and protein help increase satiety — that feeling of fullness after eating. They also trigger the release of hormones like peptide YY, GLP-1, and cholecystokinin, which signal to your brain that it’s time to stop eating. On the other hand, diets high in refined carbohydrates can spike insulin levels, which may lead to increased hunger and fat storage.
Why fibre matters.
Fiber, found naturally in fruits, vegetables, nuts, seeds, legumes, and whole grains, slows down digestion and helps stabilise blood sugar levels. It also lowers the glycaemic index of meals and supports the release of fullness hormones, helping you feel satisfied for longer.
The rise of ultra-processed foods (UPFs).
Since the industrial revolution, our food environment has drastically changed. Many people now get up to half of their daily calories from ultra-processed foods — think biscuits, crisps, sugary cereals, soft drinks, and even some protein bars and “health” snacks. These foods are often engineered to be highly palatable and convenient, but they’re typically low in fibre and packed with sugar, fat, and additives like preservatives, emulsifiers, and artificial colours.
UPFs can disrupt your body’s natural hunger and fullness signals, making it harder to regulate your appetite and weight. They can also negatively impact your gut microbiome, with some additives even linked to inflammation and metabolic issues. All of this underscores the importance of focusing on nutrient quality, not just calorie quantity, when it comes to healthy, sustainable weight management.
Small changes, big impact.
Start by making simple swaps. Replace one ultra-processed food each day with a whole, nutrient-dense option — like fresh fruit instead of a packaged snack, or a home-cooked meal instead of fast food. These small, sustainable steps can help realign your body’s natural appetite cues and support your long-term health and weight goals.
Your body will thank you — and over time, these everyday choices can lead to meaningful, lasting change.
To make an appointment with Vanessa for support with your weight loss journey call (07) 3544 6446 or Email: dietitian@qsweightloss.com.au
About Vanessa
Vanessa Jenkin is a dietitian and nutritionist. She has over 15 years of experience, specialising in medical weight management, promoting sustainable health change through evidence-based, empathetic care. Well credentialed Vanessa is an Accredited Practicing Dietitian, Accredited Nutritionist BSc (Nutr & Diet) Hons, APD, AN.
