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SEPTEMBER 2026 GI NEWS
GI News is published online by the University of Sydney, School of Life and Environmental Sciences and the Charles Perkins Centre, and delivered to the mailboxes of our 100,000+ subscribers. Our goal is to help people choose the high-quality carbs that are digested at a rate that our bodies can comfortably accommodate and to share…
ULTRA-PROCESSED FOODS
A new dietary demon has entered the psyche: ultra-processed food (1). ‘Ultra’ implies extreme, like ultra-luxury resorts. In this case, it’s applied to foods that aren’t simply processed – they also contain ingredients not available to the average cook. By definition, ultra-processed foods contain cosmetic additives: flavours, colours, emulsifiers, modified starches and other substances that…
ARE ALL ULTRA-PROCESSED FOODS BAD?
Ultra-processed foods (UPFs) are often portrayed as universally unhealthy. However, a 2025 critical review, published in the Proceedings of the Nutrition Society, argues that this simple message overlooks an important point: the NOVA classification focuses on how foods are processed/formulated, without adequately considering their nutritional value and health effects. The NOVA food classification system divides…
ULTRA-PROCESSED FOODS AND DIABETES
It is generally believed that food processing makes starches more easily digestible and sugars more readily available, leading to a higher glycemic index (GI) and load (GL). It therefore plausible to think that NOVA Group 4 Ultra-processed foods (UPFs) would have a higher GI and GL than NOVA Group 1 Unprocessed and Minimally Processed Foods…
BEFORE WE TELL PEOPLE TO AVOID ULTRA-PROCESSED FOODS, CAN THEY IDENTIFY THEM?
As concern about ultra-processed foods (UPFs) grows, policy makers and activists are increasingly discussing measures such as front-of-pack UPF warning labels. The logic is appealing: if consumers struggle to identify UPFs, simply label them and the problem is solved. In my recent Public Health Nutrition commentary (1), I argue that the issue is more complicated…
Continue Reading BEFORE WE TELL PEOPLE TO AVOID ULTRA-PROCESSED FOODS, CAN THEY IDENTIFY THEM?
UNPROCESSED OR MINIMALLY PROCESSED FOODS, GI AND GL
One of the hypotheses about the associations found between ultra-processed foods and adverse health effects like obesity and type 2 diabetes is that increased processing is associated with higher blood glucose levels. A group of Australian and North American researchers tested this hypothesis and determined that in fact GI and GL do not differ between…
Continue Reading UNPROCESSED OR MINIMALLY PROCESSED FOODS, GI AND GL
NOT ALL ULTRA-PROCESSED FOODS ARE CREATED EQUAL
What the UPF label doesn’t tell you. Ultra-processed foods (UPFs) have become nutrition’s latest villain. Social media tells us to avoid them. Headlines link them to obesity, heart disease and diabetes. Some shoppers are even choosing foods based on their NOVA classification rather than the Nutrition Information/Facts Panel. The conversation has sparked important awareness about…
Continue Reading NOT ALL ULTRA-PROCESSED FOODS ARE CREATED EQUAL
THE GOOD CARBS KITCHEN
APPLE PIE OVERNIGHT OATS 00:10 Prep • 1 Serving • Main Meal • Everyday INGREDIENTS ½ cup oats 1 cup skim milk 1 tablespoon sultanas ⅔ cup grated apple pinch of ground cinnamon, to serve METHOD For details, please visit the Healthy Food Guide NUTRITION Per serve Energy 1290 kJ/310 Calories; protein 11.5g; fat 4g…