After 20 years in food quality, the way I shop has simplified significantly. Not because food labels have become clearer — they haven’t — but because I’ve reduced my reading process to five rules that filter the most important information quickly and reliably. These are the same rules I’d tell a friend who asked how I avoid the most common food label traps.

This is the most practically useful article in the Wise Intake Nutrition section. Keep it bookmarked. The principles here apply whether you’re reading a breakfast cereal, a protein bar, or a pasta sauce.

Rule 1: Turn it over immediately and ignore the front

The front of a food package is marketing. Every element — the imagery, the colour palette, the claims, the portion of the product name — is designed to create an impression before you’ve read a single fact. “Natural,” “wholesome,” “high-protein,” “organic,” “no artificial colours” on the front are either unregulated claims or selections from a more complex reality. The information is on the back. Develop the habit of turning the package over before forming any impression of the product.

Rule 2: Check the first three ingredients — they tell the story

Ingredients are listed in descending order by weight before processing. The first three ingredients constitute the overwhelming majority of what you’re eating. If a product’s first three ingredients are whole, recognisable food — “oats, almonds, honey” — you have a food. If they’re “sugar, enriched wheat flour, palm oil” — you have a confection that may carry health claims on the front. If they’re a long list of industrial components — “modified maize starch, glucose-fructose syrup, partially hydrogenated vegetable fat” — you have an ultra-processed product regardless of the nutrition panel’s numbers.

The first three ingredients can’t be disguised. They’re listed in order. Read them first and let them frame everything else.

Rule 3: Count the sugar aliases

Sugar appears under many names — the full list of 56 is covered in the hidden sugar article. The quick version: look for any word ending in “-ose” (glucose, fructose, dextrose, sucrose, maltose), and any word containing “syrup,” “nectar,” “juice concentrate,” or “malt.” Count how many of these appear in the ingredient list. One is common. Two begins to signal significant sweetening. Three or more appearing at different positions in the list suggests sugar-splitting — distributing the sugar across multiple names to prevent any single one ranking high in the ingredient order.

Then cross-check: what does the nutrition panel show for sugars per 100g? Under 5g is low; 5–10g is moderate; over 10g is high; over 20g is very high. Both pieces of information together are more useful than either alone.

Rule 4: Ask whether the front claim is supported by the back

This is the consistency test, and it’s revealing in a wide range of food categories. If the front says “high in protein” — what is the actual protein per 100g, and does it meet the regulatory threshold (20% of energy from protein) for that claim to be permitted? If it says “whole grain” — is whole grain the first ingredient, or does it appear after refined grain variants? If it says “light” or “low fat” — what was added to compensate for the fat reduction (often sugar and thickeners)? If it says “with real fruit” — what percentage of the product is actually fruit?

The front makes claims. The back shows the basis for them. The gap between the two, where it exists, is the most informative thing on the package.

Rule 5: Shorter is almost always better

This rule has exceptions, but fewer than you’d expect. A shorter ingredient list — one where every ingredient is recognisable as a food — generally indicates a less-processed product. Length in an ingredient list usually means more additives, more emulsifiers, more stabilisers, more flavour enhancers. These aren’t always harmful, but they’re markers of industrial formulation that the nutrition panel doesn’t capture.

An ingredient list you can read aloud without stopping is a reasonable signal that you’re close to real food. An ingredient list that requires a chemistry degree to parse is a signal in the other direction.