Vector

Vector by Kellogg's has 418 kcal per 100 g. One serving (55 g) is about 230 kcal.

Vector contains 10.2 g of protein per 100 g — about 5.6 g per 55 g serving.

Yes — 10.2 g of protein per 100 g, supplying 10% of its calories. That makes it a good protein source.

Yes — carbohydrates provide 80% of its calories (81.8 g per 100 g, of which 18.2 g is sugar). It also delivers 6.4 g of fiber.

Yes — 18.2 g of sugar per 100 g, roughly 5 teaspoons. Sugar makes up 22% of its carbohydrates.

It provides 6.4 g of fiber per 100 g — 23% 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 (418 kcal), sugar (18.2 g); points in favor come from fiber (6.4 g), protein (10.2 g). Overall that places it in band C.

About 24 g of Vector equals 100 kcal. It is energy-dense, so small amounts add up quickly.