Food & drink
Mars 51 g flow wrap
1 / 2 Front
2 / 2 IngredientsFront photo matched to this barcode via Open Food Facts contributors. It is not evidence for the selected observation.
Made in
United Kingdom
The standard 51 g single Mars bar for Britain and Ireland, caramel and nougat in milk chocolate, sold from 2013 until the 40 g bar replaced it in 2026.
Size & format
+15 more · All 18 versions in 26 countries
5000159470476Where to buy
Other stores
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British back label photographed on the 51 g wrapper[1]
United Kingdom · English · supported
Evidence reviewed
Context, dates & evidence notes · Other observations
- Evidence observed
- 2018-06-10
- Net content
- 51 g
- Pack
- flow wrap
- Units in pack
- 1
- Pieces
- 1
Read from the 4032 x 843 px Open Food Facts photograph uploaded 2018-06-10; the whole statement is legible. The same strip prints "51 g" with the e-mark, the Green Dot, a tidyman symbol and the KLBD-D kosher mark; the nutrition table at the right edge is cut off.
Ingredients
As printed, EnglishMilk chocolate with soft nougat (32%) and caramel centre (27%). Ingredients: sugar, glucose syrup, skimmed milk powder, cocoa butter, cocoa mass, sunflower oil, milk fat, lactose and protein from whey (from milk), whey powder (from milk), palm fat, fat reduced cocoa, barley malt extract, emulsifier (soya lecithin), salt, egg white powder, milk protein, natural vanilla extract. (May contain: peanut). Milk chocolate contains milk solids 14% minimum. Milk chocolate contains vegetable fats in addition to cocoa butter.
- Sugar
- Glucose syrup
- Skimmed milk powder
- Cocoa butter
- Cocoa mass
- Sunflower oil
- Butterfat “milk fat”printed as "milk fat"
- Whey permeate “lactose and protein from whey (from milk)”"lactose and protein from whey" is the British label name for whey permeate
- Whey powder “whey powder (from milk)”
- Palm fat
- Fat-reduced cocoa
- Barley malt extract
- Soy lecithin emulsifier “emulsifier (soya lecithin)”
- Salt
- Egg white powder
- Milk protein
- Vanilla extract “natural vanilla extract”
Allergen declarations
Other observations & source differences (4)
Different sources or national labels can coexist. Differences alone do not establish a change to the product.
- British back label photographed on the 51 g wrapper supported · selected
Read from the 4032 x 843 px Open Food Facts photograph uploaded 2018-06-10; the whole statement is legible. The same strip prints "51 g" with the e-mark, the Green Dot, a tidyman symbol and the KLBD-D kosher mark; the nutrition table at the right edge is cut off.
- Front of the 51 g wrapper supported · Compare evidence
Read from the 3226 x 1568 px photograph uploaded 2019-04-08. The front energy flash reads "= 51g", "11%*" and "1883kJ /" per 100 g; the per-bar figures and the per-100 g kcal are folded out of view.
- Label data on Dee Bee Wholesale's product sheet supported · Compare evidence
The wholesaler's sheet reproduces the label: standardised name "Milk chocolate with soft nougat (32%) and caramel centre (27%).", a GDA flash of 960 kJ / 228 kcal per 51 g bar, the full nutrition table, both GB and IE consumer blocks and country of origin United Kingdom. Its statement is word for word the one photographed in 2018.
- Evidence awaiting context review unconfirmed · Compare evidence
Statements on the label
- Kosher, KLBD-D[1]certification · The KLBD-D mark is printed beside the net content.
Product facts
Explore the family ↗- Barcode
- 5000159470476 check digit OK
- Brand
- Mars
- Ultimately owned by
- Mars, Incorporated (🇺🇸 United States)
- Family
- Mars bar
- Category
- Food/Beverage, Confectionery/Sugar Sweetening Products, Confectionery Products, Chocolate and Chocolate/Sugar Candy Combinations - Confectionery
- Net content
- 51 g
- Pack
- flow wrap
- Sold in
- 🇬🇧 United Kingdom[1], 🇮🇪 Ireland[2]
- Pieces
- 1
- Last observed on sale
- 2026-09-25
- Last sale evidence
- Still listed in stock at GBP 0.90 by a Mace convenience store in Borough, London, on the Devo delivery app.
- Made in
- 🇬🇧 United Kingdom
- GS1 prefix
- 500 · United Kingdom
- Status
- discontinued
Who owns it
Mars ↗Made in the United Kingdom · owned from the United States
- Ultimately owned by
- Mars, Incorporated · United States
- Chain
- Mars → Mars, Incorporated
- Made in
- United Kingdom
Sources for each tie
- Mars → Mars, IncorporatedWikipedia ↗
The ownership drawing
No company above it
ownssince 1932
What the sources say about these ties
- Mars, Incorporated owns
- Wikipedia names Mars Inc. as the producer of the Mars bar since 1932.
Built from the ownership rows on the brand and company pages, each cited where it is recorded. Made in is the country of production on this product's record; the GS1 prefix of a barcode names the issuing organisation, not where the product was made.
About this product
Mars 51 g is the standard single Mars bar sold in Britain and Ireland: milk chocolate with a soft nougat (32 %) and caramel (27 %) centre, the recipe Forrest Mars Sr. first made in Slough in 1932.[3][1] The wrapper carries the British Mars Consumer Care block and the KLBD-D kosher mark,[1] and the wholesaler Dee Bee lists Mars Wrigley Confectionery UK as its maker and the United Kingdom as its country of origin, with an Irish consumer address beside the British one.[2] The bar settled at 51 g in 2013 after cuts from 62.5 g, and a 51 g bar gives 960 kJ (228 kcal).[3][2] In 2026 Mars replaced it with a 40 g bar at the same 75p price-mark.[4]
Dee Bee added this barcode to its range on 12 November 2013 and now shows it as no longer available, pointing to the 40 g bar instead; when asked about the cut, a Mars Wrigley spokesperson said the company had made "select updates to our bar sizes and pack formats".[2][4] Convenience stores in London still listed the 51 g bar at GBP 0.90 in September 2026.[5] The ingredient statement on Dee Bee's sheet is the same, word for word, as the one photographed on the wrapper in 2018.[2][1]
Where it's sold
- Mars Chocolate Bar 51 g at Mace, Borough, London [5] United Kingdom GBP 0.90 · new Mace, 107 Borough High Street, London SE1, lists "Mars Chocolate Bar" at 51 g under this barcode in its listing URL, in stock.
- Mars, Caramel, Nougat & Milk Chocolate Snack Bar 51g [2] United Kingdom new The Grimsby wholesaler Dee Bee lists this EAN as a 48 x 51 g case, added 12 November 2013, RRP GBP 1.19, now "No Longer Available" with the 40 g bar as the alternative product; the RRP is not a shelf price, so price is empty. · made in United Kingdom
- Amazon.co.uk [7] United Kingdom new Amazon.co.uk listing "Mars Bar, 51 g", brand Mars, one piece, under Grocery > Chocolate; name, brand and net content match but the page prints no barcode. Shown as currently unavailable, with no price.
- Mars, Caramel, Nougat & Milk Chocolate Snack Bar 51g [2] Ireland The same label data prints an Irish consumer block beside the British one, "IE: Mars Ireland Box 3856 Dublin 4" with the Irish number 1890 812 315.
- The back of the wrapper prints a GB-marked consumer block, "Freepost Mars Consumer Care", the UK freephone 0800 952 0077, www.mars.co.uk and www.marsnutrition.co.uk.[1] United Kingdom
A listing is evidence that this barcode is sold there, on that date; a price is what that listing showed, not a recommended price. Store links may be affiliate links (how this works).
18 versions of Mars bar
Sold in 26 countries, 3 of 18 sold in one country only
United Kingdom
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 3 bars | 118.2 g | price-marked multipack flow wrap | IE | 5000159564038 |
| Mars 4 bars | 157.6 g | multipack flow wrap | IE, US | 5000159484527 |
| 157.6 g | multipack flow wrap | IE | 5000159551823 | |
| Mars 4 x 51 g | 204 g | flow-wrapped multipack | IE | 5000159481090 |
| Mars 51 g single bar this page | 51 g | flow wrap | IE | 5000159470476 |
| Mars 51 g single bar, 75p price-mark | 51 g | price-marked flow wrap (75p) | 5000159565004 | |
| Mars 51 g single bar, later code | 51 g | flow wrap | IE, ES | 5000159551694 |
| Mars Duo | 78.8 g | two-bar wrapper | FR | 5000159470490 |
| 78.8 g | two-bar wrapper | IE | 5000159551724 | |
| Mars snack size, 9 bars | 304.2 g | multipack flow wrap | IE | 5000159521406 |
Ireland
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 3 bars | 118.2 g | price-marked multipack flow wrap | GB | 5000159564038 |
| Mars 4 bars | 157.6 g | multipack flow wrap | GB, US | 5000159484527 |
| 157.6 g | multipack flow wrap | GB | 5000159551823 | |
| Mars 4 x 51 g | 204 g | flow-wrapped multipack | GB | 5000159481090 |
| Mars 51 g single bar this page | 51 g | flow wrap | GB | 5000159470476 |
| Mars 51 g single bar, later code | 51 g | flow wrap | GB, ES | 5000159551694 |
| Mars Duo | 78.8 g | two-bar wrapper | GB | 5000159551724 |
| Mars snack size, 9 bars | 304.2 g | multipack flow wrap | GB | 5000159521406 |
France
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | BE, NL, PL, FI, IT, MT | 5000159407236 |
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | DE, AT, CH, CZ, SK, PL, TR, NG, KE | 5900951311321 |
| Mars Duo | 78.8 g | two-bar wrapper | GB | 5000159470490 |
| 78.8 g | two-bar wrapper | 5000159519328 |
Switzerland
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g | 70 g | flow wrap | UA | 5000159408301 |
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, AT, SE, NO, DK, FI, MT | 5900951311215 |
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CZ, SK, PL, TR, NG, KE | 5900951311321 |
Austria
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, CH, SE, NO, DK, FI, MT | 5900951311215 |
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, CH, CZ, SK, PL, TR, NG, KE | 5900951311321 |
Finland
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, AT, CH, SE, NO, DK, MT | 5900951311215 |
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | FR, BE, NL, PL, IT, MT | 5000159407236 |
Germany
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | AT, CH, SE, NO, DK, FI, MT | 5900951311215 |
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, AT, CH, CZ, SK, PL, TR, NG, KE | 5900951311321 |
Malta
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, AT, CH, SE, NO, DK, FI | 5900951311215 |
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | FR, BE, NL, PL, FI, IT | 5000159407236 |
Poland
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | FR, BE, NL, FI, IT, MT | 5000159407236 |
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CH, CZ, SK, TR, NG, KE | 5900951311321 |
Australia
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 47 g single bar | 47 g | paper-based wrapper | NZ | 9300682059015 |
Belgium
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | FR, NL, PL, FI, IT, MT | 5000159407236 |
Canada
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 Pack 85 g | 85 g | wrapper | 058496328757 |
Czechia
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CH, SK, PL, TR, NG, KE | 5900951311321 |
Denmark
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, AT, CH, SE, NO, FI, MT | 5900951311215 |
Italy
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | FR, BE, NL, PL, FI, MT | 5000159407236 |
Kenya
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CH, CZ, SK, PL, TR, NG | 5900951311321 |
Netherlands
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, multilingual pack (Veghel) | 51 g | flow wrap | FR, BE, PL, FI, IT, MT | 5000159407236 |
New Zealand
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 47 g single bar | 47 g | paper-based wrapper | AU | 9300682059015 |
Nigeria
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CH, CZ, SK, PL, TR, KE | 5900951311321 |
Norway
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, AT, CH, SE, DK, FI, MT | 5900951311215 |
Slovakia
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CH, CZ, PL, TR, NG, KE | 5900951311321 |
Spain
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, later code | 51 g | flow wrap | GB, IE | 5000159551694 |
Sweden
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g, Polish-prefix pack | 70 g | flow wrap | DE, AT, CH, NO, DK, FI, MT | 5900951311215 |
Türkiye
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 51 g single bar, Polish-prefix pack | 51 g | flow wrap | FR, DE, AT, CH, CZ, SK, PL, NG, KE | 5900951311321 |
Ukraine
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 x 35 g | 70 g | flow wrap | CH | 5000159408301 |
United States
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 4 bars | 157.6 g | multipack flow wrap | GB, IE | 5000159484527 |
Country not recorded
| Version | Size | Pack | Also sold in | Barcode |
|---|---|---|---|---|
| Mars 2 Pack King Size | – | wrapper | 5000159372251 |
Reviews
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Sources & research
Evidence reviewed
Open Food Facts
Back of the 51 g wrapper with the English statement and GB consumer block
pack · Accessed 2026-09-25
Source & attribution [1] ↗Dee Bee Wholesale
Mars, Caramel, Nougat & Milk Chocolate Snack Bar 51g
retailer · Accessed 2026-09-25
Source & attribution [2] ↗Coverage & research gaps (13)
Coverage measures the evidence recorded here. It does not rate the product.
- Identity: 3 / 3 · Name, brand and classification recorded
- Context: 3 / 4 · Evidence groups assigned to a researched label, edition or analysis
- Label photographs: 0 / 3 · Researched contexts with an assigned photograph
- Front of the 51 g wrapper: nutrient evidence: 2 / 2 · Recorded nutrient rows linked to a source; not the number of nutrients that ought to exist
- Label data on Dee Bee Wholesale's product sheet: nutrient evidence: 16 / 16 · Recorded nutrient rows linked to a source; not the number of nutrients that ought to exist
- markets · disputed: Open Food Facts contributors tag this barcode France as well as the United Kingdom, and the wrapper photographed for it carries only British and Irish consumer blocks. Houra lists a French "Mars Barres chocolaté, 51g" at EUR 1.29, marked "Produit arrêté", without a barcode; its recipe (perméat de lactosérum, no whey powder, no milk protein), its Haguenau operator and "Pays de fabrication : Pays-Bas" differ from this pack, so it is most likely the French 51 g article 5000159407236 and France is not listed here.
- markets · unknown: Searched amazon.co.uk on 2026-09-25 for "Mars bar 51g", "mars" and 5000159470476; the only single-bar match is B00J3TPS1A, unavailable. B00WUJH40I "Mars Bar, 51g" is sold by a third party with a size selector that also offers 48-count boxes, and prints no barcode.
- markets · unknown: Searched amazon.ie on 2026-09-25 for "mars bar 51g", "mars" and 5000159470476 (the barcode search returned nothing). The only single 51 g bar, B0DK8ZFZWD "Mars Snack Single, 51g" at EUR 1.66, sold by Amazon.ie, states GTIN 05900951311321 and Mars Multisales Spain as manufacturer, so it is the Polish-prefix sibling article, not this one; the other hits are 12-, 32-, 40- and 48-bar boxes.
- nutrition · disputed: The typed Open Food Facts record for this barcode (299 kcal, 0.6 g sugars, 0.00225 g salt per 100 g) matches neither the wholesaler's label table nor the 1883 kJ printed on the front photograph, so it is not used.
- nutrition · unknown: The 2018 back photograph cuts off at the edge of the nutrition table, so the label table itself is not photographed; the panels come from the wholesaler's sheet and the front energy flash.
- relationships · unknown: GS1's GDSN trading-partner list settles who holds the prefix but not how long it is: GLN 5000159000000 shows the holder zero-filling from the eighth digit, so 5000159 is recorded as a seven-digit prefix without a published allocation length.
- evidence · stale: Evidence was observed over a year ago; check for newer labels. Historical evidence remains valid.
- evidence · stale: Evidence was observed over a year ago; check for newer labels. Historical evidence remains valid.
- schema · schema_gap: Review and assign legacy facts to coherent observations.
- nutrition · not_researched: Nutrition declaration or exemption not recorded.
- ingredients · not_researched: Ingredient statement or sourced exemption not recorded.
- ingredients · not_researched: Ingredient statement or sourced exemption not recorded.
- nutrition · not_researched: Nutrition declaration or exemption not recorded.
All references & source details
References
- ↑ Back of the 51 g wrapper with the English statement and GB consumer block Open Food Facts. pack. Accessed 2026-09-25. Record: 5000159470476. imgid 1, 4032 x 843 px, uploaded 2018-06-10. CC BY-SA 3.0. Open Food Facts contributors. Upstream: off-51.
- ↑ Mars, Caramel, Nougat & Milk Chocolate Snack Bar 51g Dee Bee Wholesale. retailer. Accessed 2026-09-25. Record: 5000159470476. 48 x 51GM, RRP GBP 1.19, added 12/11/2013.
- ↑ Mars bar Wikipedia. publication. Accessed 2026-09-25. History, Sizes. CC BY-SA. Wikipedia contributors.
- ↑ EXCLUSIVE: Mars Wrigley's latest 'shrinkflation' slashes Mars bar sizes by nearly a quarter without lowering prices Dee Bee Wholesale. publication. Published 2026-04-09. Accessed 2026-09-25. Jack Courtez, Better Retailing. Upstream: https://www.betterretailing.com/mars-wrigley-shrink-40g/.
- ↑ Mars Chocolate Bar 51 g at Mace, Borough, London Devo. retailer. Accessed 2026-09-25. Record: 5000159470476. GBP 0.90, in stock.
- ↑ GDSN trading partners: GS1 GDSN member companies and their GLNs GS1. registry. Accessed 2026-09-25. Record: 5000159000000. GLN 5000159000000, MARS CHOCOLAT FRANCE.
- ↑ Mars Bar, 51 g : Amazon.co.uk: Grocery Amazon.co.uk. retailer. Accessed 2026-09-25. Record: B00J3TPS1A. currently unavailable.
Further sources
Additional sources recorded for this entry, including other observations and related pages.
- Open Food Facts: Mars Bar 51 g (5000159470476) Open Food Facts. catalogue. Accessed 2026-09-25. Record: 5000159470476. ODbL. Open Food Facts contributors.
- Front of the 51 g wrapper Open Food Facts. pack. Accessed 2026-09-25. Record: 5000159470476. imgid 2, 3226 x 1568 px, uploaded 2019-04-08. CC BY-SA 3.0. Open Food Facts contributors. Upstream: off-51.
- Mars Barres chocolaté, 51g Houra. retailer. Accessed 2026-09-25. Record: 1432897. EUR 1.29, "Produit arrêté".
Barcode & identifiers
- GTIN-14
05000159470476- EAN-13 / GTIN-13
5000159470476
Read the complete structured record (JSON) ↗ · Barcode image ↗
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Explore the observations, changes and sources behind this record.
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