View full-size photo · Photo: Open Food Facts contributors, CC BY-SA
Peanut Butter Flavour Milk Chocolate Protein Bar
Peanut Butter Flavour Milk Chocolate Protein Bar by Marks & Spencers provides 387 kcal per 100 g, with 3.4 g of sugars and 37.2 g of protein. That is 71% less sugar than the average product in this category. It is classified as NOVA 4 (ultra-processed food). It is listed in the Protein bars category. Contains: milk, peanuts.
Nutrient levels per 100 g
Levels use UK front-of-pack reference thresholds.
Nutrition facts
Serving size: 1 portion (55 g)
| Nutrient | Per 100 g | Per serving | % DV* | Category avg |
|---|---|---|---|---|
| Calories | 387 kcal | 213 kcal | 383 | |
| Total fat | 16.9 g | 9.3 g | 12% | 15.7 +7% |
| Saturated fat | 7.1 g | 3.9 g | 20% | 7 |
| Carbohydrates | 28.2 g | 15.5 g | 6% | 33.9 −17% |
| Total sugars | 3.4 g | 1.9 g | 11.8 −71% | |
| Added sugars | 3.4 g | 1.9 g | 4% | 6.1 −44% |
| Dietary fiber | 5.6 g | 3.1 g | 11% | 9.7 −43% |
| Protein | 37.2 g | 20.5 g | 41% | 29.5 +26% |
| Salt | 0.6 g | 0.4 g | 0.7 |
*% Daily Value for a serving, based on a 2,000-calorie diet (FDA reference values). Category average across 4038 Protein bars products on Foodmetria.
Compared with other protein bars
Bar shows the share of products in this category that contain less of the nutrient.
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.
- Allergens
- MilkPeanuts
Additives 5
Overexposure risk is based on EFSA evaluations as recorded by Open Food Facts.
Product details
- Serving size
- 1 portion (55 g)
- Sold in
- United Kingdom
- Barcode
- 29393459
Prices reported by shoppers
Loading prices…
Frequently asked questions
How many calories are in Peanut Butter Flavour Milk Chocolate Protein Bar?
Peanut Butter Flavour Milk Chocolate Protein Bar contains 387 kcal per 100 g and about 213 kcal per serving (1 portion (55 g)).
How much sugar is in Peanut Butter Flavour Milk Chocolate Protein Bar?
Peanut Butter Flavour Milk Chocolate Protein Bar has 3.4 g of sugars per 100 g, which is considered low by UK front-of-pack guidelines.
Is Peanut Butter Flavour Milk Chocolate Protein Bar healthy?
It is in NOVA group 4 — ultra-processed food. Scores describe nutritional quality and processing, not suitability for your individual diet.
Is Peanut Butter Flavour Milk Chocolate Protein Bar vegan?
Based on its ingredient list, it is not vegan.
What allergens does Peanut Butter Flavour Milk Chocolate Protein Bar contain?
According to the label data it contains: Milk, Peanuts. Recipes change — always check the package label.
Source: Open Food Facts (ODbL). Last updated September 5, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.
Reviews
Compare & rankings
Healthier alternatives
Best in category →Same category, meaningfully better on at least one measure and no worse on the others. Each card shows what improves.
NOVA 4 
NOVA 4 
NOVA 4 
NOVA 4 More protein bars
View all →
NOVA 3 
NOVA 4 
NOVA 4 
NOVA 4 
NOVA 4 
NOVA 4 More from Marks & Spencers
View all →
d NOVA 3 
c NOVA 4 
b NOVA 1 
b NOVA 3 
c NOVA 3 
a NOVA 4