Lays

Lays by Lay's has 513 kcal per 100 g. One serving (30 g) is about 154 kcal.

Lays contains 6.2 g of protein per 100 g — about 1.9 g per 30 g serving.

Yes — only 0.5 g of sugar per 100 g. Most of its 55 g of carbs come from starch and fiber rather than sugar.

It provides 5.2 g of fiber per 100 g — 19% 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 (513 kcal); points in favor come from fiber (5.2 g). Overall that places it in band B.

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

Yes — 513 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 256 kcal.

Per 100 g it has 0.5 g sugar and 29 g fat (2.1 g saturated). Fat provides 52% of its calories, so portion size matters most here.