Mystery Flavour

Mystery Flavour by Pringles has 523 kcal per 100 g. One serving (165 g) is about 863 kcal.

Mystery Flavour contains 6.3 g of protein per 100 g — about 10.4 g per 165 g serving.

It provides 4 g of fiber per 100 g — 14% of the daily value.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. Points against come from calorie density (523 kcal), saturated fat (3 g); points in favor come from fiber (4 g). Overall that places it in band C.

About 19 g of Mystery Flavour equals 100 kcal. It is energy-dense, so small amounts add up quickly.

Yes — 523 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 262 kcal.

Per 100 g it has 3.9 g sugar and 30 g fat (3 g saturated). Fat provides 52% of its calories, so portion size matters most here.