Coffee

Coffee has 500 kcal per 100 g.

Coffee contains 20 g of protein per 100 g.

Yes — 20 g of protein per 100 g, supplying 16% of its calories. That makes it an excellent protein source.

Yes — only 0 g of sugar per 100 g. Most of its 60 g of carbs come from starch and fiber rather than sugar.

It has 10 g of saturated fat per 100 g — 50% of the daily value, which counts as high.

Yes — just 100 mg per 100 g (4% of the daily value), which qualifies as low sodium.

It provides 60 g of fiber per 100 g — 214% of the daily value, making it a high-fiber food.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. Points against come from calorie density (500 kcal), saturated fat (10 g); points in favor come from fiber (60 g), protein (20 g). Overall that places it in band C.