Zwieback

Zwieback by S-Budget has 401 kcal per 100 g. One serving (320 g) is about 1283 kcal.

Zwieback contains 11 g of protein per 100 g — about 35.2 g per 320 g serving.

Yes — 11 g of protein per 100 g, supplying 11% of its calories. That makes it a good protein source.

Yes — carbohydrates provide 73% of its calories (72 g per 100 g, of which 8 g is sugar). It also delivers 4.1 g of fiber.

Yes — 640 mg of sodium per 100 g, about 28% of the daily value.

It provides 4.1 g of fiber per 100 g — 15% 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 (401 kcal), sodium (640 mg); points in favor come from fiber (4.1 g), protein (11 g). Overall that places it in band C.

About 25 g of Zwieback equals 100 kcal. It is energy-dense, so small amounts add up quickly.