Salted Puffs

Salted Puffs by Tesco has 509 kcal per 100 g. One serving (100 g) is about 509 kcal.

Salted Puffs contains 1.2 g of protein per 100 g — about 1.2 g per 100 g serving.

Yes — only 0.5 g of sugar per 100 g. Most of its 63 g of carbs come from starch and fiber rather than sugar.

Yes — 1023 mg of sodium per 100 g, about 44% of the daily value.

It provides 3.5 g of fiber per 100 g — 12% 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 (509 kcal), sodium (1023 mg); points in favor come from fiber (3.5 g). Overall that places it in band D.

About 20 g of Salted Puffs equals 100 kcal. It is energy-dense, so small amounts add up quickly.

Yes — 509 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 254 kcal.