Protein

Protein by Protein has 373 kcal per 100 g. One serving (45 g) is about 168 kcal.

Protein contains 9.3 g of protein per 100 g — about 4.2 g per 45 g serving.

It has 9.3 g of saturated fat per 100 g — 46% of the daily value, which counts as high.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. Points against come from calorie density (373 kcal), sugar (13.9 g), saturated fat (9.3 g); points in favor come from protein (9.3 g). Overall that places it in band D.

About 27 g of Protein equals 100 kcal. It is energy-dense, so small amounts add up quickly.

Yes — 373 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 186 kcal.

Per 100 g it has 13.9 g sugar and 33.4 g fat (9.3 g saturated). Fat provides 77% of its calories, so portion size matters most here.