What Are Ultra-Processed Foods?
Ultra-processed foods (UPFs) are industrial formulations made mostly or entirely from substances derived from foods and additives, with little or no intact food. They're designed to be hyper-palatable, convenient, and long-lasting — but growing research links them to obesity, heart disease, type 2 diabetes, and certain cancers.
The classification comes from the NOVA system, developed by researchers at the University of Sao Paulo. NOVA divides all foods into four groups based on the extent and purpose of processing.
The NOVA Classification System
NOVA 1 — Unprocessed or Minimally Processed
Fresh, dried, or frozen fruits and vegetables, grains, legumes, nuts, eggs, milk, plain meat, and fish. These are foods in their natural state or altered only by removal of inedible parts, drying, crushing, or pasteurisation.
Examples: Fresh apples, raw chicken breast, rolled oats, plain milk, frozen peas.
NOVA 2 — Processed Culinary Ingredients
Substances obtained directly from NOVA 1 foods by pressing, refining, grinding, or milling. Used in cooking but rarely eaten alone.
Examples: Olive oil, butter, sugar, salt, flour, vinegar.
NOVA 3 — Processed Foods
NOVA 1 foods modified by adding NOVA 2 ingredients. Simple methods like canning, bottling, or fermentation. Usually 2-3 ingredients.
Examples: Canned tuna in oil, cheese, freshly baked bread, salted nuts, pickled vegetables.
NOVA 4 — Ultra-Processed Foods
Industrial formulations with 5 or more ingredients, typically including substances not used in home cooking: high-fructose corn syrup, hydrogenated oils, protein isolates, emulsifiers, humectants, flavour enhancers, and colours.
Examples: Soft drinks, packaged chips, instant noodles, reconstituted meat products, most breakfast cereals, packaged biscuits, ice cream, mass-produced bread.
The Scale of the Problem in Australia
Research from the University of Newcastle found that 42% of total energy intake for Australian adults comes from ultra-processed foods. For children and teenagers, the figure is even higher — up to 58%.
The most consumed ultra-processed categories in Australia are:
- 1.Packaged bread — most supermarket bread is NOVA 4
- 2.Breakfast cereals — particularly flavoured and children's varieties
- 3.Processed meat — ham, bacon, sausages, deli meats
- 4.Sweet biscuits and cakes — including "health" bars
- 5.Soft drinks and flavoured water
8 "Healthy" Products That Are Actually Ultra-Processed
1. Protein Bars
Despite the "high protein" health halo, most protein bars contain 15-25 ingredients including protein isolates, sugar alcohols, emulsifiers, and artificial flavours. They're firmly NOVA 4.
2. Plant-Based Milks (Flavoured)
Plain soy or almond milk can be NOVA 3, but flavoured varieties (vanilla, chocolate, barista blends) often contain added sugars, emulsifiers (gellan gum, sunflower lecithin), and flavourings that push them to NOVA 4.
3. Supermarket Bread
Check the ingredients on your regular bread. If it lists emulsifiers (481, 472e), preservatives (282), or dough conditioners, it's ultra-processed. True bread needs only flour, water, yeast, and salt.
4. Flavoured Yoghurt
Plain yoghurt is NOVA 3 (milk + cultures). Add fruit puree, sugar, thickeners (1442), colours, and flavourings, and it becomes NOVA 4. The difference is stark — plain Greek yoghurt scores 80+ on KnowYourFood, while strawberry yoghurt often scores below 50.
5. Instant Oats (Flavoured Sachets)
Plain instant oats are fine (NOVA 2). But flavoured sachets (apple cinnamon, honey) contain added sugar, maltodextrin, flavourings, and sometimes colours. Stick to plain and add your own toppings.
6. Packaged Deli Meats
Ham, turkey breast, and salami from the deli counter contain preservatives (sodium nitrite 250), phosphates, and flavour enhancers. Even "97% fat free" ham is ultra-processed.
7. Meal Kit Sauces
Those convenient stir-fry and curry sauces in jars or pouches typically contain sugar, thickeners, flavour enhancers (621, 635), colours, and preservatives. Making a simple sauce from scratch takes 5 minutes and avoids all of these.
8. "Natural" Fruit Juice
Most shelf-stable fruit juices are reconstituted from concentrate and pasteurised at high temperatures. While technically NOVA 3, the sugar concentration (often 10g per 100ml — same as Coca-Cola) makes them a poor choice regardless.
How to Identify Ultra-Processed Foods
The 5-Ingredient Rule
If a product has more than 5 ingredients, check for substances you wouldn't find in a home kitchen. Emulsifiers, stabilisers, humectants, flavour enhancers, and colours are markers of ultra-processing.
The Kitchen Test
Ask yourself: "Could I make this at home with normal kitchen ingredients?" If the answer is no (because you don't have maltodextrin, xanthan gum, or sodium tripolyphosphate in your pantry), it's likely ultra-processed.
The KnowYourFood Way
The fastest method is to scan the barcode with KnowYourFood. The app instantly shows the NOVA processing level (1-4), highlights every additive, and suggests less-processed alternatives in the same category. A product's NOVA classification is displayed prominently alongside its health score and Nutri-Score.
Making Better Choices
You don't need to eliminate all ultra-processed foods — that's unrealistic in modern Australia. The goal is awareness and gradual reduction. Start with the products you consume most frequently:
- •Swap flavoured yoghurt for plain and add fresh fruit
- •Choose sourdough or bakery bread over packaged sliced bread
- •Replace muesli bars with nuts or homemade trail mix
- •Make simple sauces from scratch instead of using jar sauces
- •Drink water instead of flavoured drinks
Every swap moves you toward a less processed diet. KnowYourFood makes these swaps easy by showing you exactly what's in your food and suggesting healthier alternatives you can buy at the same supermarket.