Food & drink

Mars 2 Pack King Size

Twin-bar king-size edition of the Mars caramel and nougat bar, recorded on Open Food Facts as "Mars 2 Pack" and on the 2006-2013 Barcodepedia as a "2er Pack".

Size & format

Barcode 5000159372251

Evidence awaiting context review

Market not established · unconfirmed

Evidence reviewed

These facts have not yet been grouped into confirmed label or edition contexts. Market and date qualifications belong to each source.

Context, dates & evidence notes · Other observations
Other observations & source differences (3)

Different sources or national labels can coexist. Differences alone do not establish a change to the product.

Barcode
5000159372251 check digit OK
Brand
Mars
Family
Mars bar
Last observed on sale
2015-02-06
Last sale evidence
Date of the only photograph of this pack on Open Food Facts; no current retail listing for this GTIN was found.

About this product

Mars 2 Pack King Size is the twin-bar king-size edition of the Mars bar, the caramel and nougat bar in milk chocolate that Mars, Incorporated has made since Forrest Mars Sr. first produced it in Slough in 1932.[1] The only photograph of this barcode shows the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE".[2] Open Food Facts holds the code as "Mars 2 Pack" with a Dutch-language front and neither an ingredient list nor a panel,[3] and the 2006-2013 Barcodepedia recorded it in November 2008 as "Mars", described only as a "2er Pack".[4]

More about this product

Wikipedia's account of the bar's sizes has the 84 g king-size bar of 2008 replaced by an 85 g pack of two bars, sold as Mars Duo,[1] which is the format this wrapper advertises; no source found gives this article its own weight, market or label, so those cells stay empty. The barcode sits under GS1 UK prefix 5000159, whose registrant no public source names; Mars Wrigley Confectionery UK Limited of Slough, the group's British confectionery company, is recorded as the derived prefix owner.[5] The composition shown is the one published for the current two-bar Mars pack and is declared secondary, not this pack's label.[6]

Other names for this product

Also known as

  • Mars 2 Pack en

Reviews

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Sources & research

Evidence reviewed

Wikipedia

Mars bar

publication · Accessed 2026-09-14

Source & attribution [1] ↗

Open Food Facts

Front photograph of the wrapper, uploaded to Open Food Facts

catalogue · Accessed 2026-09-14

Source & attribution [2] ↗

Barcodepedia, Internet Archive

Barcodepedia (2008): 5000159372251 - Mars

other · Accessed 2026-09-14

Source & attribution [4] ↗
Coverage & research gaps (12)

Coverage measures the evidence recorded here. It does not rate the product.

  • Identity: 3 / 3 · Name, brand and classification recorded
  • Context: 2 / 3 · Evidence groups assigned to a researched label, edition or analysis
  • Label photographs: 0 / 2 · Researched contexts with an assigned photograph
  • Published composition of the Mars two-bar pack 5000159408301: nutrient evidence: 8 / 8 · Recorded nutrient rows linked to a source; not the number of nutrients that ought to exist
  • identity · unknown: Net content is not established: no listing ties this GTIN to a weight. Wikipedia records an 84 g king-size Mars bar replaced by an 85 g two-bar pack, which is not evidence for this article.
  • ingredients · unknown: No ingredient list for this pack has been read; the Open Food Facts record carries no ingredients text and only a 296 x 79 px front crop.
  • nutrition · unknown: The pack's own nutrition panel has not been read; the values here are the composition published for the sibling twin pack and are declared secondary.
  • markets · unknown: No retailer listing was found for this GTIN. Open Food Facts tags the record Belgium and its front photo is the Dutch-language front, neither of which is market evidence, so country_of_sale is left empty.
  • relationships · unknown: Nothing found names the manufacturer, packer or the registrant of GS1 prefix 5000159; the 2008 Barcodepedia page's "produced in United Kingdom by Masterfoods" line was generated from the prefix.
  • 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.
  • ingredients · not_researched: Ingredient statement or sourced exemption not recorded.
  • 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

  1. Mars bar Wikipedia. publication. Accessed 2026-09-14. History, Sizes. CC BY-SA. Wikipedia contributors.
  2. Front photograph of the wrapper, uploaded to Open Food Facts Open Food Facts. catalogue. Published 2015-02-06. Accessed 2026-09-14. Record: 5000159372251. front, imgid 1. CC BY-SA 3.0. Open Food Facts contributors.
  3. Open Food Facts: Mars 2 Pack (5000159372251) Open Food Facts. catalogue. Accessed 2026-09-14. Record: 5000159372251. ODbL. Open Food Facts contributors.
  4. Barcodepedia (2008): 5000159372251 - Mars Barcodepedia, Internet Archive. other. Published 2008-11-20. Accessed 2026-09-14.
  5. MARS WRIGLEY CONFECTIONERY UK LIMITED overview Companies House. registry. Accessed 2026-09-14. Record: 06649982.
  6. Open Food Facts: Mars (2x), 2 x 35 g = 70 g (5000159408301) Open Food Facts. catalogue. Accessed 2026-09-14. Record: 5000159408301. ODbL. Open Food Facts contributors.
Barcode & identifiersBarcode 5000159372251
GTIN-14
05000159372251
EAN-13 / GTIN-13
5000159372251
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Last edited 2026-09-14 View history Sign in to edit

Reuse freely with credit: text CC BY-SA 4.0, data ODbL. Cite this page as Source: Barcodepedia, https://barcodepedia.com/product/5000159372251/mars-2-pack-king-size (licence).