Peanut Butter Bar

Packaged product Sweets and Desserts Marks & Spencers

Peanut Butter Bar contains 545 kcal per 100 g. A serving, 1 portion, 36 g (36 g) provides about 196 kcal.

Roughly 60% of its calories come from fat, with 32% from carbohydrates and 8% from protein (estimated with general energy factors).

That is close to the median for sweets and desserts on FoodFactly (518 kcal per 100 g).

100 g provides 25% of the Daily Value for copper, 17% of the Daily Value for manganese and 12% of the Daily Value for phosphorus.

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

Peanut Butter Bar by Marks & Spencers, product photo
Photo: Open Food Facts, CC BY-SA 3.0, Open Food Facts contributors
545kcal per 100 g
11.1 gprotein
42.5 gcarbohydrates
35.9 gfat
196kcal in serving, 1 portion, 36 g (36 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories L 545 kcal
Total fat L 35.9 g 46%
Saturated fat L 16.4 g 82%
Cholesterol L 8.4 mg 3%
Sodium L 0.88 mg 0%
Total carbohydrates L 42.5 g 15%
Dietary fiber L 3.8 g 14%
Total sugars L 35.2 g
Added sugars L 46.8 g 94%
Protein L 11.1 g 22%
Vitamin A L 17.1 µg2%
Vitamin C L 0.88 mg1%
Vitamin D L 0.091 µg0.5%
Vitamin E L 0.8 mg5%
Thiamin (B1) L 0.093 mg8%
Riboflavin (B2) L 0.15 mg11%
Niacin (B3) L 0.49 mg3%
Pantothenic acid (B5) L 0.31 mg6%
Vitamin B6 L 0.067 mg4%
Folate (B9) L 16 µg4%
Vitamin B12 L 0.25 µg10%
Calcium L 89.8 mg7%
Iron L 0.76 mg4%
Magnesium L 39.8 mg9%
Phosphorus L 149 mg12%
Potassium L 224 mg5%
Zinc L 0.89 mg8%
Copper L 0.23 mg25%
Manganese L 0.4 mg17%
Selenium L 5.4 µg10%
Iodine L 1.4 µg0.9%

% 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: 8%Carbohydrates: 32%Fat: 60%545kcal / 100 g
  • Protein 8%
  • Carbohydrates 32%
  • Fat 60%

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

Copper25%Manganese17%Phosphorus12%Riboflavin (B2)11%Vitamin B1210%Selenium10%Magnesium9%Zinc8%Thiamin (B1)8%Calcium7%

Nutritional insights

  • Protein11.1 gin the top quarter of sweets and desserts (median 6.4 g)
  • Fiber3.8 gabove the median for sweets and desserts (median 2.2 g)
  • Sugars35.2 gin the lowest quarter of sweets and desserts (median 48 g)
  • Fat35.9 gin the top quarter of sweets and desserts (median 29 g)
  • Saturated fat16.4 gabove the median for sweets and desserts (median 16.4 g)
  • Sodium0.88 mgin the lowest quarter of sweets and desserts (median 100 mg)
  • Protein per 100 kcal2 gprotein density, useful for comparing foods with different calorie levels
  • Water1.5 gwater per 100 g, which largely explains differences between raw, cooked and dried forms

Full nutrient profile

Sugars and starch (1)
Starch L2.4 g
Carotenoids (1)
Beta-carotene L14.5 µg
Other components (2)
Water L1.5 g
Alcohol L0 g

Product details

Brand
Marks & Spencers
Barcode
00848671
Quantity
36g
Label serving
1 portion (36 g)
Category
Candy chocolate bars
Nutri-Score
E as computed by Open Food Facts
NOVA group
4 processing level (1 to 4), as classified by Open Food Facts

Ingredients

Sugar, Roasted Peanuts (21%), Cocoa Mass, Cocoa Butter, Dried Whole Milk, Glucose Syrup, Vegetable Oils (Palm, Shea, Coconut, Sunflower, Rapeseed) in varying proportions, Sweetened Condensed Milk (Whole Milk, Sugar, Lactose (Milk)), Ground Roasted Peanuts (2%), Golden Syrup (Invert Sugar Syrup), Salt, Emulsifier: Lecithins (Soya), E47, Flavourings (contain Milk), Caramelised Sugar Syrup.

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

Ingredient guides: SugarPeanutCocoa butterGlucose syrupMilkSaltPalm oilCoconut oilSunflower oilRapeseed (canola) oil

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

Frequently asked questions

How many calories are in Peanut Butter Bar?

100 g of Peanut Butter Bar has 545 kcal. Serving, 1 portion, 36 g (36 g): about 196 kcal.

Is Peanut Butter Bar high in protein?

Peanut Butter Bar contains 11.1 g of protein per 100 g (22% of the 50 g Daily Value), or 4 g in serving, 1 portion, 36 g (36 g). About 8% of its calories come from protein. Compared with other sweets and desserts, that is among the highest quarter (median 6.4 g).

How many carbs are in Peanut Butter Bar?

Peanut Butter Bar has 42.5 g of total carbohydrates per 100 g, including 3.8 g of fiber and 35.2 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 Bar?

Peanut Butter Bar contains 35.9 g of fat per 100 g, of which 16.4 g is saturated (82% of the Daily Value).

What vitamins and minerals does Peanut Butter Bar contain?

Per 100 g, the most notable amounts relative to the Daily Value are copper (25% DV), manganese (17% DV), phosphorus (12% DV), Riboflavin (B2) (11% DV) and Vitamin B12 (10% DV). The full list is in the vitamins and minerals table above.

How much sodium is in Peanut Butter Bar?

100 g contains 0.88 mg of sodium, 0% of the 2,300 mg Daily Value.

Where does this nutrition data come from?

From Open Food Facts, record dated March 27, 2026. FoodFactly last checked it on November 8, 2026. Each value above shows whether it was measured, calculated or taken from a label.

Source of the nutrition information

  • Open Food Facts, record 00848671. License: ODbL 1.0 (Open Food Facts). Source record dated March 27, 2026. Imported November 8, 2026.

Last updated: . Data quality score: 100/100 (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.