Whey

Whey by Eric Favre has 353 kcal per 100 g. One serving (100 g) is about 353 kcal.

Whey contains 83.3 g of protein per 100 g — about 83.3 g per 100 g serving.

Yes — 83.3 g of protein per 100 g, supplying 94% of its calories. That makes it an excellent protein source.

With 1.8 g total carbs (about 1.8 g net carbs) per 100 g, it fits low-carb and keto eating patterns in normal portions.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. Points against come from calorie density (353 kcal); points in favor come from protein (83.3 g). Overall that places it in band B.

About 28 g of Whey equals 100 kcal. It is energy-dense, so small amounts add up quickly.

Yes — 353 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 176 kcal.

Per 100 g it has 1.5 g sugar and 1.4 g fat (0.8 g saturated). Fat provides 4% of its calories, so portion size matters most here.