You buy the yogurt with protein on the front, the all-natural granola and the multigrain bread, and you still feel bloated and tired. Then you flip the pack and the ingredient list reads like a chemistry exam. Learning how to read food labels, and how to spot ultra-processed food, takes about thirty seconds a product once you know the tells.
Food versus edible product
Real food looks like where it came from, a plant or an animal. It has a short list of ingredients you can picture in a kitchen, and it spoils. A fake-healthy product is built in a factory to imitate real food, with a long list of refined, extracted or synthetic parts, and it is sold on a claim on the front of the pack. A packaged food now and then is fine. The skill is knowing which one you are holding.
This matters because ultra-processed food changes how much you eat. In a trial run by the US National Institutes of Health (Hall et al., 2019), people ate about 500 more calories a day on an ultra-processed diet than on whole food matched for sugar, salt, fat and fibre, and gained weight.
The front is an advert, the back is the law
- Natural. Almost meaningless. In the US it has no binding definition, and it does not mean organic or unprocessed.
- Made with real fruit. It can mean a splash of juice concentrate among mostly sugar and flavouring. See how far down the list the fruit appears.
- No added sugar. The product may still contain natural sugars, sugar alcohols or syrups under other names.
- Cage-free. Often crowded indoor barns without cages. Better than caged, but not the pasture the picture suggests.
- Whole grain. Trust it only when a whole grain is the first ingredient. Made with whole grain on a white-flour product is a halo.
- Certified organic. One of the few strongly regulated terms. Look for the official logo, not just the word.
Six rules for the ingredient list
1. Count the ingredients
Fewer is usually better. A loaf with five ingredients beats one with twenty-five.
2. Read the first three
Ingredients are listed by weight. If sugar, refined flour or an oil sits in the first three, that is mostly what you are eating.
3. Spot the sugar aliases
Sugar hides under dozens of names: glucose-fructose syrup, dextrose, maltodextrin, cane juice, concentrate. Several of them together mean a sugar product in disguise.
4. Be wary of the unpronounceables
Long chemical names are usually emulsifiers, stabilisers, colours and flavourings doing a job that real food does not need. They are not necessarily poison, but they are a sign of a product rather than a food.
5. Check the real serving size
Brands shrink the serving so the sugar and calorie figures look small. Read the per-100 g column and ask how much you will really eat.
6. Ignore the front, trust the panel
Light, protein, immunity and a green leaf are marketing. The ingredient list and nutrition panel are the part that is regulated.
Spot real food without a label
- Plain yogurt is just milk and live cultures. Fruit yogurts are often a sugar dessert.
- Real cheese is milk, culture, salt and rennet. Pre-shredded cheese is dusted with anti-caking agents.
- Real butter is cream, and maybe salt. Sourdough is flour, water and salt.
- Raw honey is cloudy and crystallises over time. Glassy-clear honey that never sets has been heated and heavily filtered.
- Real maple syrup has one ingredient. Pancake syrup is usually corn syrup with colour.
- Dark chocolate lists cacao first, not sugar.
- Whole spices keep their aroma for years, while pre-ground fade fast, so smell them.
What about seed oils?
Industrial seed oils such as soybean, corn, sunflower and canola are refined at high heat and are very high in omega-6, which is why people worry. Mainstream evidence finds that, used in moderation in a whole-food diet, they are not the villain they are made out to be. The bigger issue is the ultra-processed food they usually arrive in, so you do not need to fear a salad dressing.
Want the full method?
This is a short version. Our guide Stop Getting Fooled: Real Food vs Fake Food (7 euros) is a full field guide, with how to spot real food by sight, smell and texture, a label decoder, swaps, recipes and a trolley list. To stock a simple kitchen, browse our plastic-free kitchen range and our organic spices.
Frequently asked questions
What counts as ultra-processed food?
The NOVA system sorts food by how processed it is rather than by nutrients. Signs include a long ingredient list, sugar or refined flour near the top, and additives such as emulsifiers, colours and flavourings.
Is a short ingredient list always better?
Usually, yes, since real food is mostly itself. But look at what the short list contains, because sugar plus two other things is still mostly sugar.
Do I have to avoid all packaged food?
No. The aim is to choose it knowingly, so the marketing does not choose for you.
This article is general information, not medical advice. See a doctor for persistent symptoms.