Peanut Butter Protein Bar

Peanut Butter Protein Bar by M&S has 387 kcal per 100 g. One serving (55 g) is about 213 kcal.

Peanut Butter Protein Bar contains 37.2 g of protein per 100 g — about 20.5 g per 55 g serving.

Yes — 37.2 g of protein per 100 g, supplying 36% of its calories. That makes it an excellent protein source.

It has 7.1 g of saturated fat per 100 g — 36% of the daily value, which counts as high.

It provides 5.6 g of fiber per 100 g — 20% 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 (387 kcal), saturated fat (7.1 g); points in favor come from fiber (5.6 g), protein (37.2 g). Overall that places it in band C.

About 26 g of Peanut Butter Protein Bar equals 100 kcal. It is energy-dense, so small amounts add up quickly.

Yes — 387 kcal per 100 g makes it calorie-dense; a 50 g portion is already about 194 kcal.