Peanut Butter Flavour Milk Chocolate Protein Bar

Packaged product Snacks Marks & Spencers

Peanut Butter Flavour Milk Chocolate Protein Bar contains 387 kcal per 100 g. A serving, 1 bar, 55 g (55 g) provides about 213 kcal.

Roughly 37% of its calories come from fat, with 36% from protein and 27% from carbohydrates (estimated with general energy factors).

That is close to the median for snacks on FoodFactly (381 kcal per 100 g).

The values are as declared on the product label and entered by Open Food Facts contributors.

Peanut Butter Flavour Milk Chocolate Protein Bar by Marks & Spencers, product photo
Photo: Open Food Facts, CC BY-SA 3.0, Open Food Facts contributors
387kcal per 100 g
37.2 gprotein
28.2 gcarbohydrates
16.9 gfat
213kcal in serving, 1 bar, 55 g (55 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories L 387 kcal
Total fat L 16.9 g 22%
Saturated fat L 7.1 g 36%
Sodium L 252 mg 11%
Total carbohydrates L 28.2 g 10%
Dietary fiber L 5.6 g 20%
Total sugars L 3.4 g
Added sugars L 1.9 g 4%
Protein L 37.2 g 74%
Choline L 0 mg0%

% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.

Nutritional breakdown

Protein: 36%Carbohydrates: 27%Fat: 37%387kcal / 100 g
  • Protein 36%
  • Carbohydrates 27%
  • Fat 37%

Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).

Vitamins and minerals, % Daily Value per 100 g

Choline0%

Nutritional insights

  • Protein37.2 gin the top quarter of snacks (median 30 g)
  • Fiber5.6 gbelow the median for snacks (median 7.8 g)
  • Sugars3.4 gbelow the median for snacks (median 5.7 g)
  • Fat16.9 gabove the median for snacks (median 14.5 g)
  • Saturated fat7.1 gabove the median for snacks (median 6.7 g)
  • Sodium252 mgabove the median for snacks (median 217 mg)
  • Protein per 100 kcal9.6 gprotein density, useful for comparing foods with different calorie levels

Full nutrient profile

Sugars and starch (1)
Starch L0 g

Product details

Brand
Marks & Spencers
Barcode
29393459
Label serving
1 Bar (55 g)
Category
Protein bars
NOVA group
4 processing level (1 to 4), as classified by Open Food Facts

Ingredients

Milk Chocolate with Sweetener (22%) (Sweetener: Maltitol · Cocoa Butter · Dried Whole Milk · Cocoa Mass · Emulsifier: Lecithin · Natural Vanilla Flavouring) · Calcium Caseinate (Milk) · Humectant: Glycerol · Hydrolysed Beef Collagen · Concentrated Whey Protein (Milk) · Polydextrose · Water · Peanut Butter (5%) · Whey Protein Isolate (Milk) · Roasted Chopped Peanuts (4%) · Sunflower Oil · White Chocolate with Sweetener (Sweetener: Maltitol · Cocoa Butter · Dried Whole Milk · Emulsifier: Lecithin · Natural Vanilla Flavouring) · Natural Peanut Flavouring · Concentrated Caramelised Carrot · Concentrated Carrot · Salt.

As listed on the package and transcribed by Open Food Facts contributors. Always check the package for allergens.

Ingredient guides: PeanutSunflower oilCocoa butterSalt

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Per 100 g. Calories in kcal. n/a: not reported by the source.

Source of the nutrition information

  • Open Food Facts, record 29393459. License: ODbL 1.0 (Open Food Facts). Source record dated October 28, 2026. Imported November 12, 2026.

Last updated: . Source description: "PEANUT BUTTER FLAVOUR MILK CHOCOLATE PROTEIN BAR". Data quality score: 95/100 (how it is calculated).

Product data from Open Food Facts, made available under the Open Database License. Values are as declared on the label; labels can change over time, so check the package you have.

General nutrition information, not medical advice. Individual needs differ; see our disclaimer.

Frequently asked questions

How many calories are in Peanut Butter Flavour Milk Chocolate Protein Bar?

100 g of Peanut Butter Flavour Milk Chocolate Protein Bar has 387 kcal. Serving, 1 bar, 55 g (55 g): about 213 kcal.

Is Peanut Butter Flavour Milk Chocolate Protein Bar high in protein?

Peanut Butter Flavour Milk Chocolate Protein Bar contains 37.2 g of protein per 100 g (74% of the 50 g Daily Value), or 20.5 g in serving, 1 bar, 55 g (55 g). About 36% of its calories come from protein. Compared with other snacks, that is among the highest quarter (median 30 g).

How many carbs are in Peanut Butter Flavour Milk Chocolate Protein Bar?

Peanut Butter Flavour Milk Chocolate Protein Bar has 28.2 g of total carbohydrates per 100 g, including 5.6 g of fiber and 3.4 g of sugars. Label conventions differ: in the EU and some other regions carbohydrates are declared without fiber.

How much fat is in Peanut Butter Flavour Milk Chocolate Protein Bar?

Peanut Butter Flavour Milk Chocolate Protein Bar contains 16.9 g of fat per 100 g, of which 7.1 g is saturated (36% of the Daily Value).

How much sodium is in Peanut Butter Flavour Milk Chocolate Protein Bar?

100 g contains 252 mg of sodium, 11% of the 2,300 mg Daily Value.

Where does this nutrition data come from?

From Open Food Facts, record dated October 28, 2026. FoodFactly last checked it on November 12, 2026. Each value above shows whether it was measured, calculated or taken from a label.