Rice Krispies

Rice Krispies by Kellogg's has 385 kcal per 100 g. One serving (100 g) is about 385 kcal.

Rice Krispies contains 6 g of protein per 100 g — about 6 g per 100 g serving.

Yes — carbohydrates provide 91% of its calories (88.1 g per 100 g, of which 0.6 g is sugar). It also delivers 0.2 g of fiber.

Yes — only 0.6 g of sugar per 100 g. Most of its 88.1 g of carbs come from starch and fiber rather than sugar.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. Points against come from calorie density (385 kcal). Overall that places it in band C.

About 26 g of Rice Krispies equals 100 kcal. It is energy-dense, so small amounts add up quickly.

Yes — 385 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 192 kcal.

Per 100 g it has 0.6 g sugar and 1 g fat (0 g saturated). Fat provides 3% of its calories, so portion size matters most here.