Pure Whey, Nature

Pure Whey, Nature by bulk has 381 kcal per 100 g. One serving (32 g) is about 122 kcal.

Pure Whey, Nature contains 71.9 g of protein per 100 g — about 23 g per 32 g serving.

Yes — 71.9 g of protein per 100 g, supplying 75% of its calories. That makes it an excellent protein source.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. Points against come from calorie density (381 kcal), sugar (10.9 g); points in favor come from protein (71.9 g). Overall that places it in band C.

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

Yes — 381 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 190 kcal.

Per 100 g it has 10.9 g sugar and 3.4 g fat (1.9 g saturated). Fat provides 8% of its calories, so portion size matters most here.