Walk down a cereal aisle in France, Spain, or Germany and you will see a small colored badge on the front of many packages: a letter from A (dark green) to E (red). That is Nutri-Score - a front-of-pack label designed to help you compare similar foods at a glance, without reading every line of the nutrition table first.
It is not a diet plan, a calorie counter, or a verdict on whether you should eat something. It is a simplified nutrition ranking per 100 g or 100 ml, based on a public algorithm. This guide explains what Nutri-Score means, how the grade is built, where it appears, what it misses, and how to use it wisely - including with SmartEat's barcode scanner.
What Nutri-Score is in one sentence
Nutri-Score summarizes the nutritional quality of a packaged product on a five-step scale from A (best) to E (least favorable), using energy, sugar, saturated fat, sodium, fiber, protein, and fruit/vegetable/nut content - calculated for a standard 100 g or 100 ml portion.
The A to E scale
On pack, Nutri-Score uses a five-color scale from dark green to dark orange, each linked to a letter from A to E. Santé publique France, which created the system, describes A as the best nutritional quality and E as the lowest. The full A - E strip usually appears on the front of the package, with the product's own grade highlighted (often with a "loupe" or zoom effect on the matching letter).
Each grade reflects the same public algorithm applied to 100 g of food or 100 ml of drink - not your serving size at home:
Grade A - best nutritional quality
Dark green. Products with the most favorable balance on the scale: typically lower in energy, saturated fat, sugars, and salt, and often richer in fiber, protein, or fruit and vegetables per 100 g. Think plain yogurt, many unsweetened cereals, or frozen vegetables - still watch portions, but these are the options to favor within a category.
Grade B - good nutritional quality
Light green. A solid everyday choice. The product scores well overall but may be slightly higher in one nutrient to limit (for example sugars or salt) than an A-rated alternative. Useful when comparing two similar items on the same shelf.
Grade C - average nutritional quality
Yellow. Neither especially favorable nor especially unfavorable on the Nutri-Score scale. Many staple foods land here. Worth reading the full nutrition table for sugar, salt, and saturated fat before making it a daily default.
Grade D - low nutritional quality
Orange. Often higher in energy density, saturated fat, sugars, or sodium. Fine occasionally, but consumer groups recommend not building your routine around D-rated products when an A or B option exists in the same category.
Grade E - lowest nutritional quality
Dark orange to red. The least favorable score on the scale - common for sugary drinks, salty snacks, confectionery, and some processed meats. Nutri-Score is not telling you to never eat them; it marks products to limit most often.
How to use the letters: Compare similar foods (yogurt with yogurt, not yogurt with olive oil). The label translates back-of-pack numbers into one score - it does not praise or demonize entire food groups, and it is not a substitute for medical or dietary advice.
Important: A does not mean "eat unlimited amounts." Portion size, your overall diet, and your personal health goals still matter. A small amount of a D-rated food can fit your plan; a large bowl of a B-rated food may not.
How Nutri-Score is calculated (high level)
The math is public. Regulators assign negative points and positive points from the nutrition facts, then map the final balance to a letter.
| Negative points (more = worse grade) | Positive points (more = better grade) |
|---|---|
| Energy (kJ) | Fruits, vegetables, legumes, nuts (FVLN) |
| Total sugars | Dietary fiber |
| Saturated fatty acids | Protein |
| Sodium | - |
Everything is normalized to 100 g (solid foods) or 100 ml (drinks). That makes comparing two yogurts or two breakfast cereals fair. It also explains some surprises: calorie-dense whole foods like olive oil or nuts can score lower even though they are healthy in sensible amounts.
Where you will (and won't) see Nutri-Score
Nutri-Score started in France (2017) and is now used voluntarily on many products across several European countries. Adoption varies by brand and market.
- Common on: Packaged foods in participating EU markets - cereals, dairy, ready meals, snacks, drinks.
- Often missing on: Fresh produce, loose bakery items, restaurant meals, and many products outside Europe.
- In the US and many other regions: Nutri-Score is not standard on labels; you may still find it in databases like Open Food Facts when manufacturers or crowdsourced entries include it.
What Nutri-Score is good for
- Quick comparisons within a category - Two granolas? Two tomato sauces? Nutri-Score helps you spot the sweeter or saltier option fast.
- Teaching label literacy - The grade nudges you toward fiber and away from excess sugar and salt.
- Family shopping - A simple visual cue when kids or partners choose snacks.
What Nutri-Score does not tell you
No single letter replaces reading the full label or thinking about your whole day of eating.
- Not personalized - Same grade for a marathon runner and someone managing diabetes; medical diets need professional guidance.
- Per 100 g, not your portion - A small amount of a D-rated food may fit your plan; a large bowl of a B-rated food may not.
- Processing level is separate - Nutri-Score focuses on nutrient content, not how ultra-processed a product is. That is why NOVA groups (1 - 4) exist as a complementary tool.
- Whole foods can look "worse" - Nuts, cheese, and oils score modestly because they are energy-dense per 100 g.
- Database gaps - If a product lacks Nutri-Score in the database, no app can invent one reliably.
Nutri-Score vs NOVA - use both when you can
SmartEat's barcode scanner can show Nutri-Score and NOVA group together (when Open Food Facts has the data):
- Nutri-Score - Nutrient profile summary (A - E).
- NOVA - How processed the product is (Group 1 unprocessed to Group 4 ultra-processed).
Example: a lightly processed plain yogurt might score B on Nutri-Score and sit in NOVA 1 or 2. A low-sugar ultra-processed snack might look better on nutrients alone but still be NOVA 4. Context from both labels beats either one in isolation.
Practical shopping rules (without obsessing)
- Compare similar products - Nutri-Score is for "which muesli?" not "muesli vs salmon."
- Prefer A or B when choices are close - Then check sugar and sodium if you track them.
- Read ingredients for NOVA - Long additive lists often mean ultra-processed, regardless of letter grade.
- Log what you actually eat - A barcode scan in your tracker shows calories and macros for your serving size, not just the front-of-pack letter.
- Do not chase perfect grades - Flexible eating beats avoiding entire food groups because of one E on a label.
See Nutri-Score in SmartEat
Open SmartEat → Scan → Barcode, point at a product UPC/EAN, and view calories, macros, ingredients, allergens, Nutri-Score, and NOVA when available. Add the item to your diary in one tap.
That is especially useful when traveling in Europe, shopping international brands, or checking imports that still carry Nutri-Score in the global Open Food Facts database.
Bottom line
Nutri-Score is a helpful at-a-glance filter for packaged foods: green-to-red letters built from sugar, salt, saturated fat, fiber, protein, and more. Use it to compare like with like, pair it with NOVA and full nutrition facts, and let your daily tracker handle portions and totals.
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