Mars 2 Pack King Size: version 2
Saved 2026-09-14 11:28 by site bot: Front photo: Open Food Facts raw upload 1, checked by eye against the page (R22 A1 backfill). This is the current version.
Source of v2
# Mars 2 Pack King Size <!--product-->
## Identity <!--identity-->
gtin: 05000159372251
name: Mars 2 Pack King Size
family: family/mars-bar
default_observation: off-front-2015
summary: 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".
brand: brand/mars
category: category/10000045
last_seen: 2015-02-06
last_seen_note: Date of the only photograph of this pack on Open Food Facts; no current retail listing for this GTIN was found.
<!--/identity-->
## Relations <!--relations-->
| role | target | market | from | until | ended | status | source | note |
| ------------------- | ------------------------------------- | ------ | ---- | ----- | ----- | ------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| brand_owner_at_sale | company/mars-incorporated | | | | | sourced | ^wp-mars | Wikipedia names Mars Inc. as the producer of the Mars bar. |
| gs1_prefix_owner | company/mars-wrigley-confectionery-uk | | | | | derived | ^ch-mwcuk | Prefix 5000159 is a GS1 UK prefix and no source names its registrant; targeted as the prefix-country confectionery company of the brand owner. The prefix predates its 2008 incorporation. |
<!--/relations-->
## Aliases <!--aliases-->
| name | type | locale | from | until |
| -------------- | ------ | ------ | ---- | ----- |
| Mars 2 Pack | name | en | | |
| Mars King Size | search | en | | |
<!--/aliases-->
## Observations <!--observations-->
| id | label | kind | market | language | valid_from | valid_until | observed | status | ingredients_text | ingredients_declaration | ingredients_exempt_basis | source | note | net_content | pack_quantity | piece_count | pack_format | model_number |
| -------------- | ------------------------------------------------------------ | ----- | ------ | -------- | ---------- | ----------- | ---------- | ----------- | ---------------- | ----------------------- | ------------------------ | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ |
| off-front-2015 | Front of the wrapper, photographed for Open Food Facts | label | | nl | | | 2015-02-06 | supported | | | | ^off-photo | Front only, 296 x 79 px: the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE". No ingredient list, panel or net content is visible on it. | | 2 | | wrapper | |
| twin-pack-ref | Published composition of the Mars two-bar pack 5000159408301 | label | | de | | | 2026-09-14 | unconfirmed | | | | ^off-sibling | Not this article: the label of the current 2 x 35 g Mars twin pack sold in DE, FR, CH and ES, kept here as reference composition for the same bar. Its market and date do not apply to this pack. | | | | | |
<!--/observations-->
## Nutrition panels <!--nutrition_panels-->
| id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note |
| ------- | ------------- | -------------------------------- | ----- | ----------- | ---------- | ----------- | ------------ | ------------ | ---------------------------------------------------------------------------------------------------------------------- |
| ref-100 | twin-pack-ref | Per 100 g, reference composition | 100 g | as_sold | | secondary | | ^off-sibling | Reference composition of the Mars bar taken from the twin pack 5000159408301; this pack's own panel has not been read. |
<!--/nutrition_panels-->
## Nutrition values <!--nutrition_values-->
| panel | nutrient | value | qualifier | printed_value | state | method | source | note |
| ------- | --------------- | ----- | --------- | ------------- | ----- | -------- | ------------ | ------------------------------------------------------------------------------- |
| ref-100 | energy_kj | 1887 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | energy_kcal | 449 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | fat_g | 17 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | saturated_fat_g | 8.3 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | carbohydrate_g | 70 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | sugars_g | 62 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | protein_g | 4 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | salt_g | 0.41 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
<!--/nutrition_values-->
## Research gaps <!--research_gaps-->
| observation | domain | state | detail | source |
| -------------- | ------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------ |
| | 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. | ^wp-mars |
| off-front-2015 | 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. | ^off |
| off-front-2015 | 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. | ^off-sibling |
| | 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. | ^off |
| | 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. | ^bp2008 |
<!--/research_gaps-->
## Research <!--research-->
structure_version: 2
reviewed_on: 2026-09-14
note: Built from the wanted list. Identity rests on the Open Food Facts record and its front photograph; size, market, ingredients and nutrition of this pack remain open.
<!--/research-->
## Meta <!--meta-->
title: Mars 2 Pack King Size (5000159372251)
description: The twin-bar king-size Mars pack behind barcode 5000159372251, with its Open Food Facts record, its 2015 wrapper photograph and the 2008 Barcodepedia entry.
<!--/meta-->
## Images <!--images-->
| asset | kind | source | licence | attribution | url | accessed | note | provider_entity_id | provider_image_id | source_image_url | download_url | retrieved_at | matched_barcode | match_method | match_confidence | original_width | original_height | stored_width | stored_height | upscaled | observation |
| ------------------ | ----- | --------------- | ------------ | ---------------------------- | ----------------------------------------------------- | ---------- | ---- | ------------------ | ----------------- | ----------------------------------------------------------------------- | ------------ | ------------------------ | --------------- | ------------ | ---------------- | -------------- | --------------- | ------------ | ------------- | -------- | ----------- |
| front-98066c4e.jpg | front | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5000159372251 | 2026-09-14 | | 5000159372251 | 1 | https://images.openfoodfacts.org/images/products/500/015/937/2251/1.jpg | | 2026-09-14T11:28:36.742Z | 5000159372251 | barcode | 1 | 296 | 79 | 800 | 214 | true | |
<!--/images-->
## References <!--references-->
| ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream |
| ----------- | ----------------------------------------------------------------------------------------- | ------------------------------------------------------------ | ---------- | ------------------------------ | ----------- | ---------- | ------------- | -------------- | ------------ | ---------------------------- | -------- |
| off | https://world.openfoodfacts.org/product/5000159372251 | Open Food Facts: Mars 2 Pack (5000159372251) | 2026-09-14 | Open Food Facts | catalogue | | 5000159372251 | | ODbL | Open Food Facts contributors | |
| off-photo | https://images.openfoodfacts.org/images/products/500/015/937/2251/1.jpg | Front photograph of the wrapper, uploaded to Open Food Facts | 2026-09-14 | Open Food Facts | catalogue | 2015-02-06 | 5000159372251 | front, imgid 1 | CC BY-SA 3.0 | Open Food Facts contributors | |
| off-sibling | https://world.openfoodfacts.org/product/5000159408301 | Open Food Facts: Mars (2x), 2 x 35 g = 70 g (5000159408301) | 2026-09-14 | Open Food Facts | catalogue | | 5000159408301 | | ODbL | Open Food Facts contributors | |
| wp-mars | https://en.wikipedia.org/wiki/Mars_bar | Mars bar | 2026-09-14 | Wikipedia | publication | | | History, Sizes | CC BY-SA | Wikipedia contributors | |
| bp2008 | https://web.archive.org/web/20081120000807/http://de.barcodepedia.com/5000159372251/mars- | Barcodepedia (2008): 5000159372251 - Mars | 2026-09-14 | Barcodepedia, Internet Archive | other | 2008-11-20 | | | | | |
| ch-mwcuk | https://find-and-update.company-information.service.gov.uk/company/06649982 | MARS WRIGLEY CONFECTIONERY UK LIMITED overview | 2026-09-14 | Companies House | registry | | 06649982 | | | | |
<!--/references-->
## About <!--about-->
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.[^wp-mars] The only photograph of this barcode shows the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE".[^off-photo] Open Food Facts holds the code as "Mars 2 Pack" with a Dutch-language front and neither an ingredient list nor a panel,[^off] and the 2006-2013 Barcodepedia recorded it in November 2008 as "Mars", described only as a "2er Pack".[^bp2008]
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,[^wp-mars] 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.[^ch-mwcuk] The composition shown is the one published for the current two-bar Mars pack and is declared secondary, not this pack's label.[^off-sibling]
<!--/about-->