Mars 51 g: version 1
Saved 2026-09-25 19:28 by @benjaminsen (bot): Added product/05000159551694, the later-code 51 g single Mars bar (GB, IE, ES), completing a barcode named by family/mars-bar. Identity and the full label (statement, per-100 g and per-51 g nutrition, allergens) from Bestway Wholesale, whose sheet prints retail EAN 5000159551694; the Open Food Facts back photo (2023) confirms the same whey-permeate statement and prints GB and IE consumer blocks; the 2024 front photo shows a Spanish import sticker of Overseas Imports S.L., Benissa, for which a company stub is created (Iberinform, Empresia). Markets: Devo (GBP 0.85) and Best Before it's Gone (GBP 0.40, out of stock). Gaps: whether this code was withdrawn in the March 2026 cut to 40 g; OFF typed nutrition disagrees slightly and is not used; Amazon UK/IE/ES settled by web search only (the stores answer a WAF challenge).. Current is v2.
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Changes from v1 to current
| 1 | 1 | # Mars 51 g <!--product--> | |
| 2 | 2 | ||
| 3 | 3 | ## Identity <!--identity--> | |
| 4 | 4 | gtin: 05000159551694 | |
| 5 | 5 | name: Mars 51 g | |
| 6 | 6 | family: family/mars-bar | |
| 7 | 7 | default_observation: bestway-sheet | |
| 8 | 8 | summary: The later 51 g single Mars bar for Britain and Ireland, with whey permeate in place of the older lactose and whey powder, also imported into Spain. | |
| 9 | 9 | brand: brand/mars | |
| 10 | 10 | category: category/10000045 | |
| 11 | 11 | net_content: 51 g | |
| 12 | 12 | country_of_sale: GB, IE, ES | |
| 13 | 13 | pack_quantity: 1 | |
| 14 | 14 | piece_count: 1 | |
| 15 | 15 | pack_format: flow wrap | |
| 16 | 16 | <!--/identity--> | |
| 17 | 17 | ||
| 18 | 18 | ## Relations <!--relations--> | |
| 19 | 19 | | role | target | market | from | until | ended | status | source | note | | |
| 20 | 20 | | ---------------------- | ----------------------------------------- | ------ | ---- | ----- | ----- | ------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | |
| 21 | 21 | | brand_owner_at_sale | company/mars-incorporated | | | | | sourced | ^wp-mars | Wikipedia names Mars Inc. as the producer of the Mars bar, sold worldwide outside the United States. | | |
| 22 | 22 | | food_business_operator | company/mars-wrigley-confectionery-uk | GB | | | | printed | ^off-back | The GB consumer block on the back prints "Freepost Mars Wrigley Confection[ery]" with the UK freephone 0800 952 0077 and www.mars.co.uk; the right edge of the photograph cuts the name. | | |
| 23 | 23 | | imported_by | company/overseas-imports | ES | | | | printed | ^off-front | A Spanish sticker on the bars photographed for this barcode reads "Importado por OVERSEAS IMPORTS S.L. ESB38437109, C/ Isaac Peral, 26, P.I. La Pedrera, Benissa 03720 (Alicante)". | | |
| 24 | 24 | | gs1_prefix_owner | company/mars-wrigley-confectionery-france | | | | | sourced | ^gs1-gdsn | GS1's own GDSN trading-partner list carries GLN 5000159000000 against MARS CHOCOLAT FRANCE, the former name of Mars Wrigley Confectionery France; a GLN is issued out of its holder's company prefix. | | |
| 25 | 25 | <!--/relations--> | |
| 26 | 26 | ||
| 27 | 27 | ## Markets <!--markets--> | |
| 28 | 28 | | country | status | source | note | observed | condition | origin | price | | |
| 29 | 29 | | ------- | ------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- | --------- | ------ | -------- | | |
| 30 | 30 | | GB | printed | ^off-back | The back of the wrapper prints a GB-marked consumer block with the UK freephone 0800 952 0077, www.mars.co.uk and a Freepost address for Mars Wrigley Confectionery. | 2023-09-01 | | | | | |
| 31 | 31 | | GB | sourced | ^bestway | Bestway Wholesale lists "Mars Milk Chocolate Bar 51g", retail EAN 5000159551694, in cases of 48 with an RSP of GBP 1.19; the RSP is a recommended price, not a shelf price, so price is empty. | 2026-09-25 | new | | | | |
| 32 | 32 | | GB | sourced | ^devo | News Food and Wine, Streatham, London SW16, lists "Mars Chocolate Bar" at 51 g on the Devo delivery app with this barcode in the listing URL. | 2026-09-25 | new | | GBP 0.85 | | |
| 33 | 33 | | GB | sourced | ^cheapfood | The Daventry clearance retailer Best Before it's Gone lists "Mars Chocolate Bar - 51g" with barcode 5000159551694 at GBP 0.40 each, out of stock; it sells short-dated and surplus stock, so the price is a clearance price. | 2026-09-25 | new | | GBP 0.40 | | |
| 34 | 34 | | IE | printed | ^off-back | The same back prints an IE-marked consumer block, "Mars Foods Ireland Ltd, PO Box 3856", with https://ire.mars.com/ and an Irish 1890 number. | 2023-09-01 | | | | | |
| 35 | 35 | | ES | printed | ^off-front | The bars photographed for this barcode carry a Spanish import sticker naming Overseas Imports S.L. of Benissa (Alicante) with a Spanish sanitary registration number. | 2024-07-01 | | | | | |
| 36 | 36 | <!--/markets--> | |
| 37 | 37 | ||
| 38 | 38 | ## Aliases <!--aliases--> | |
| 39 | 39 | | name | type | locale | from | until | | |
| 40 | 40 | | --------------------------- | ------ | ------ | ---- | ----- | | |
| 41 | 41 | | Mars Bar Single 51g | search | en | | | | |
| 42 | 42 | | Mars Milk Chocolate Bar 51g | search | en | | | | |
| 43 | 43 | | Mars Chocolate Bar 51g | search | en | | | | |
| 44 | 44 | | Mars Standard Single | search | en | | | | |
| 45 | 45 | <!--/aliases--> | |
| 46 | 46 | ||
| 47 | 47 | ## Ingredients <!--ingredients--> | |
| 48 | 48 | | ingredient | role | kind | note | percent | basis | market | from | until | source | id | observation | parent_id | position | printed_name | state | | |
| 49 | 49 | | ------------------------------ | ---------- | ----- | --------------------- | ------- | ----- | ------ | ---- | ----- | -------- | --- | ------------- | --------- | -------- | -------------------------- | ----- | | |
| 50 | 50 | | ingredient/sugar | | label | | | | | | | ^bestway | b1 | bestway-sheet | | 1 | Sugar | known | | |
| 51 | 51 | | ingredient/glucose-syrup | | label | | | | | | | ^bestway | b2 | bestway-sheet | | 2 | Glucose Syrup | known | | |
| 52 | 52 | | ingredient/skimmed-milk-powder | | label | | | | | | | ^bestway | b3 | bestway-sheet | | 3 | Skimmed MILK Powder | known | | |
| 53 | 53 | | ingredient/cocoa-butter | | label | | | | | | | ^bestway | b4 | bestway-sheet | | 4 | Cocoa Butter | known | | |
| 54 | 54 | | ingredient/cocoa-mass | | label | | | | | | | ^bestway | b5 | bestway-sheet | | 5 | Cocoa Mass | known | | |
| 55 | 55 | | ingredient/sunflower-oil | | label | | | | | | | ^bestway | b6 | bestway-sheet | | 6 | Sunflower Oil | known | | |
| 56 | 56 | | ingredient/whey-permeate | | label | | | | | | | ^bestway | b7 | bestway-sheet | | 7 | Whey Permeate (MILK) | known | | |
| 57 | 57 | | ingredient/palm-fat | | label | | | | | | | ^bestway | b8 | bestway-sheet | | 8 | Palm Fat | known | | |
| 58 | 58 | | ingredient/butterfat | | label | printed as "milk fat" | | | | | | ^bestway | b9 | bestway-sheet | | 9 | MILK Fat | known | | |
| 59 | 59 | | ingredient/fat-reduced-cocoa | | label | | | | | | | ^bestway | b10 | bestway-sheet | | 10 | Fat-Reduced Cocoa Powder | known | | |
| 60 | 60 | | ingredient/barley-malt-extract | | label | | | | | | | ^bestway | b11 | bestway-sheet | | 11 | BARLEY Malt Extract | known | | |
| 61 | 61 | | ingredient/salt | | label | | | | | | | ^bestway | b12 | bestway-sheet | | 12 | Salt | known | | |
| 62 | 62 | | ingredient/soy-lecithin | emulsifier | label | | | | | | | ^bestway | b13 | bestway-sheet | | 13 | Emulsifier (SOYA Lecithin) | known | | |
| 63 | 63 | | ingredient/egg-white-powder | | label | | | | | | | ^bestway | b14 | bestway-sheet | | 14 | EGG White Powder | known | | |
| 64 | 64 | <!--/ingredients--> | |
| 65 | 65 | ||
| 66 | 66 | ## Observations <!--observations--> | |
| 67 | 67 | | 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 | | |
| 68 | 68 | | ------------- | ------------------------------------------------- | ----- | ------ | -------- | ---------- | ----------- | ---------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------- | ------------------------ | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ | | |
| 69 | 69 | | bestway-sheet | Label data on Bestway Wholesale's product sheet | label | GB | en | | | 2026-09-25 | supported | Milk chocolate (40%) with soft nougat (32%) and caramel centre (27%). Ingredients: Sugar, Glucose Syrup, Skimmed MILK Powder, Cocoa Butter, Cocoa Mass, Sunflower Oil, Whey Permeate (MILK), Palm Fat, MILK Fat, Fat-Reduced Cocoa Powder, BARLEY Malt Extract, Salt, Emulsifier (SOYA Lecithin), EGG White Powder. (May Contain: PEANUTS And Other NUTS). MILK Chocolate Contains MILK Solids 14% Minimum. | listed | | ^bestway | The wholesaler's sheet prints retail EAN 5000159551694, the standardised name, the full statement and a nutrition table per 100 g and per 51 g, with the "100% Responsibly Sourced Cocoa" wording of the wrapper. | 51 g | 1 | 1 | flow wrap | | | |
| 70 | 70 | | gb-ie-2023 | English back label with GB and IE consumer blocks | label | GB, IE | en | | | 2023-09-01 | supported | Milk chocolate (40%) with soft nougat (32%) and caramel centre (27%). Ingredients: sugar, glucos[e syrup], skimmed milk powder, cocoa butter, cocoa mass, sunflower oil, whey permeate (milk), palm fat, m[ilk fat], fat-reduced cocoa powder, barley malt extract, salt, emulsifier (soya lecithin), egg white powde[r. (May] contain: peanuts and other nuts). Milk chocolate contains milk solids 14% minimum. Milk cho[colate] contains vegetable fats in addition to cocoa [butter]. Suitable for Vegetarians. | listed | | ^off-back | Read from the 2091 x 985 px Open Food Facts photograph uploaded 2023-09-01; the right edge of the wrapper is outside the frame, and the bracketed words are the ones it cuts. The statement matches the Bestway sheet word for word where both are legible. The nutrition table at the left edge shows only its percentage column. The strip also prints the "Responsibly Sourced Cocoa 100%" badge with a QR code. | 51 g | 1 | 1 | flow wrap | | | |
| 71 | 71 | | es-2024 | Fronts of the bars with a Spanish import sticker | label | ES | es | | | 2024-07-01 | supported | | | | ^off-front | Read from the 3264 x 1734 px photograph uploaded 2024-07-01 of a shelf-ready tray of bars. One wrapper carries a white sticker, "Importado por OVERSEAS IMPORTS S.L. ESB38437109, C/ Isaac Peral, 26, P.I. La Pedrera, Benissa 03720 (Alicante)", with a sanitary registration number; the front energy flash reads "...442 kcal" and the lower edge "Free from Artificial Colours". | 51 g | 1 | 1 | flow wrap | | | |
| 72 | 72 | <!--/observations--> | |
| 73 | 73 | ||
| 74 | 74 | ## Nutrition panels <!--nutrition_panels--> | |
| 75 | 75 | | id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note | | |
| 76 | 76 | | ------- | ------------- | ------------------------------ | ----- | ----------- | ------------------------------- | ----------- | ------------ | -------- | ------------------------------------------------- | | |
| 77 | 77 | | bw-100g | bestway-sheet | Nutritional Information /100 g | 100 g | as_sold | | transcribed | | ^bestway | As the wholesaler's sheet prints the label table. | | |
| 78 | 78 | | bw-51g | bestway-sheet | Nutritional Information /51 g | 51 g | as_sold | printed serving column, one bar | transcribed | | ^bestway | | | |
| 79 | 79 | <!--/nutrition_panels--> | |
| 80 | 80 | ||
| 81 | 81 | ## Nutrition values <!--nutrition_values--> | |
| 82 | 82 | | panel | nutrient | value | qualifier | value_max | dv_percent | printed_value | state | method | source | note | | |
| 83 | 83 | | ------- | --------------- | ----- | --------- | --------- | ---------- | ------------- | ----- | ------- | -------- | ---- | | |
| 84 | 84 | | bw-100g | energy_kj | 1858 | exact | | | 1858kJ | known | printed | ^bestway | | | |
| 85 | 85 | | bw-100g | energy_kcal | 442 | exact | | | 442kcal | known | printed | ^bestway | | | |
| 86 | 86 | | bw-100g | fat_g | 16 | exact | | | 16g | known | printed | ^bestway | | | |
| 87 | 87 | | bw-100g | saturated_fat_g | 7.5 | exact | | | 7.5g | known | printed | ^bestway | | | |
| 88 | 88 | | bw-100g | carbohydrate_g | 70 | exact | | | 70g | known | printed | ^bestway | | | |
| 89 | 89 | | bw-100g | sugars_g | 61 | exact | | | 61g | known | printed | ^bestway | | | |
| 90 | 90 | | bw-100g | polyols_g | 0 | exact | | | 0g | known | printed | ^bestway | | | |
| 91 | 91 | | bw-100g | protein_g | 4.5 | exact | | | 4.5g | known | printed | ^bestway | | | |
| 92 | 92 | | bw-100g | salt_g | 0.68 | exact | | | 0.68g | known | printed | ^bestway | | | |
| 93 | 93 | | bw-51g | energy_kj | 948 | exact | | | 948kJ | known | printed | ^bestway | | | |
| 94 | 94 | | bw-51g | energy_kcal | 225 | exact | | | 225kcal | known | printed | ^bestway | | | |
| 95 | 95 | | bw-51g | fat_g | 8.1 | exact | | | 8.1g | known | printed | ^bestway | | | |
| 96 | 96 | | bw-51g | saturated_fat_g | 3.8 | exact | | | 3.8g | known | printed | ^bestway | | | |
| 97 | 97 | | bw-51g | carbohydrate_g | 36 | exact | | | 36g | known | printed | ^bestway | | | |
| 98 | 98 | | bw-51g | sugars_g | 31 | exact | | | 31g | known | printed | ^bestway | | | |
| 99 | 99 | | bw-51g | protein_g | 2.3 | exact | | | 2.3g | known | printed | ^bestway | | | |
| 100 | 100 | | bw-51g | salt_g | 0.34 | exact | | | 0.34g | known | printed | ^bestway | | | |
| 101 | 101 | <!--/nutrition_values--> | |
| 102 | 102 | ||
| 103 | 103 | ## Allergen declarations <!--allergens--> | |
| 104 | 104 | | observation | allergen | declaration | source | note | | |
| 105 | 105 | | ------------- | -------- | ----------- | --------- | ------------------------------------------------------- | | |
| 106 | 106 | | bestway-sheet | milk | contains | ^bestway | MILK in capitals in the statement; "Contains Milk". | | |
| 107 | 107 | | bestway-sheet | gluten | contains | ^bestway | "BARLEY Malt Extract"; "Contains Barley". | | |
| 108 | 108 | | bestway-sheet | soybeans | contains | ^bestway | "Emulsifier (SOYA Lecithin)"; "Contains Soya". | | |
| 109 | 109 | | bestway-sheet | eggs | contains | ^bestway | "EGG White Powder"; "Contains Eggs". | | |
| 110 | 110 | | bestway-sheet | peanuts | may_contain | ^bestway | "(May Contain: PEANUTS And Other NUTS)". | | |
| 111 | 111 | | bestway-sheet | nuts | may_contain | ^bestway | Same statement. | | |
| 112 | 112 | | gb-ie-2023 | milk | contains | ^off-back | milk set in bold. | | |
| 113 | 113 | | gb-ie-2023 | gluten | contains | ^off-back | barley in bold. | | |
| 114 | 114 | | gb-ie-2023 | soybeans | contains | ^off-back | soya in bold. | | |
| 115 | 115 | | gb-ie-2023 | eggs | contains | ^off-back | egg in bold. | | |
| 116 | 116 | | gb-ie-2023 | peanuts | may_contain | ^off-back | "...contain: peanuts and other nuts)", peanuts in bold. | | |
| 117 | 117 | | gb-ie-2023 | nuts | may_contain | ^off-back | nuts in bold, in the same statement. | | |
| 118 | 118 | <!--/allergens--> | |
| 119 | 119 | ||
| 120 | 120 | ## Label claims <!--claims--> | |
| 121 | 121 | | observation | claim | kind | source | note | | |
| 122 | 122 | | ----------- | ------------------------------ | ----- | ---------- | ------------------------------------------------------------------------------------------------------------ | | |
| 123 | 123 | | gb-ie-2023 | Suitable for Vegetarians | label | ^off-back | | | |
| 124 | 124 | | gb-ie-2023 | 100% Responsibly Sourced Cocoa | label | ^off-back | Footnoted as a mass-balance claim: Mars buys a volume of responsibly sourced cocoa equal to the volume used. | | |
| 125 | 125 | | es-2024 | Free from Artificial Colours | label | ^off-front | Printed along the lower edge of the wrapper; the rest of the line is out of view. | | |
| 126 | 126 | <!--/claims--> | |
| 127 | 127 | ||
| 128 | 128 | ## Research gaps <!--research_gaps--> | |
| 129 | 129 | | observation | domain | state | detail | source | | |
| 130 | 130 | | ----------- | ------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------- | | |
| 131 | 131 | | | identity | unknown | Mars cut the British single bar from 51 g to 40 g from March 2026, and trade figures showed a 51 g article as discontinued; no Mars page names the barcode of either bar, so whether this code was withdrawn with that change is open. Bestway still offered it on 2026-09-25. | ^mars40g | | |
| 132 | 132 | | | nutrition | disputed | The typed Open Food Facts record for this barcode gives 1849 kJ, 16 g fat and 0.67 g salt per 100 g against the Bestway table's 1858 kJ and 0.68 g; its 441.2 kcal is a computed figure, so the record is not used. | ^off | | |
| 133 | 133 | | gb-ie-2023 | nutrition | unknown | The 2023 back photograph shows only the percentage column of the nutrition table, so the panels come from the Bestway sheet. | ^off-back | | |
| 134 | 134 | | | 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. | ^gs1-gdsn | | |
| 135 | 135 | | | markets | unknown | amazon.co.uk searched on 2026-09-25 for "Mars bar 51g single", "mars" and 5000159551694 through web search, since the store answers this agent with a WAF challenge. Single-bar hits B00WUJH40I and B00J3TPS1A show the older lactose and whey powder recipe of 5000159470476 and print no barcode; the rest are 10-, 24-, 35- and 48-bar boxes. | | | |
| 136 | 136 | | | markets | unknown | amazon.ie searched on 2026-09-25 for "Mars bar 51g", "mars" and 5000159551694 through web search: only a 24-bar box (B0BJHNCG72) and unrelated Mars products; no single bar printing this barcode. | | | |
| 137 | 137 | | | markets | unknown | amazon.es searched on 2026-09-25 for "Mars barrita 51g", "mars" and 5000159551694 through web search: the single bar B002XM0EUY lists the continental recipe (whole milk powder, lactose), so it is the continental article, and the rest are 24-, 32- and 48-bar boxes. | | | |
| 138 | 138 | <!--/research_gaps--> | |
| 139 | 139 | ||
| 140 | 140 | ## Research <!--research--> | |
| 141 | 141 | structure_version: 2 | |
| 142 | 142 | reviewed_on: 2026-09-25 | |
| 143 | 143 | note: Built from the two Open Food Facts photographs (2023 back, 2024 front with a Spanish import sticker), Bestway Wholesale's product sheet printing the retail EAN, Devo and Best Before it's Gone listings and the family page's sources. | |
| 144 | 144 | <!--/research--> | |
| 145 | 145 | ||
| 146 | 146 | ## Meta <!--meta--> | |
| 147 | 147 | title: Mars 51 g single bar, later code (5000159551694) | |
| 148 | 148 | description: The later British and Irish 51 g Mars bar with whey permeate: label ingredients, nutrition per 100 g and per bar, allergens, operator and Spanish importer. | |
| 149 | 149 | <!--/meta--> | |
| 150 | 150 | ||
| 151 | 151 | ## Images <!--images--> | |
| 152 | − | | 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 | | |
| 153 | − | | ----- | ---- | ------ | ------- | ----------- | --- | -------- | ---- | ------------------ | ----------------- | ---------------- | ------------ | ------------ | --------------- | ------------ | ---------------- | -------------- | --------------- | ------------ | ------------- | -------- | ----------- | | |
| 152 | + | | 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 | | |
| 153 | + | | ------------------------ | ----------- | --------------- | ------------ | ---------------------------- | ----------------------------------------------------- | ---------- | ---- | ------------------ | ----------------- | ------------------------------------------------------------------------------------------- | ------------ | ------------------------ | --------------- | ------------ | ---------------- | -------------- | --------------- | ------------ | ------------- | -------- | ----------- | | |
| 154 | + | | front-e1364023.jpg | front | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5000159551694 | 2026-09-25 | | 5000159551694 | front_en | https://images.openfoodfacts.org/images/products/500/015/955/1694/front_en.9.full.jpg | | 2026-09-25T19:28:14.719Z | 5000159551694 | barcode | 1 | 3264 | 1734 | 1600 | 850 | | | | |
| 155 | + | | ingredients-ea16e080.jpg | ingredients | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5000159551694 | 2026-09-25 | | 5000159551694 | ingredients_en | https://images.openfoodfacts.org/images/products/500/015/955/1694/ingredients_en.4.full.jpg | | 2026-09-25T19:28:16.107Z | 5000159551694 | barcode | 1 | 2091 | 985 | 1600 | 754 | | | | |
| 154 | 156 | <!--/images--> | |
| 155 | 157 | ||
| 156 | 158 | ## References <!--references--> | |
| 157 | 159 | | ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream | | |
| 158 | 160 | | ---------- | -------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | ---------- | --------------------- | ----------- | ---------- | ------------- | -------------------------------------------- | ------------ | ------------------------------ | -------------------------------------------------------- | | |
| 159 | 161 | | off | https://world.openfoodfacts.org/product/5000159551694 | Open Food Facts: Mars (5000159551694) | 2026-09-25 | Open Food Facts | catalogue | | 5000159551694 | | ODbL | Open Food Facts contributors | | | |
| 160 | 162 | | off-back | https://images.openfoodfacts.org/images/products/500/015/955/1694/1.jpg | Back of the 51 g wrapper with the English statement and GB and IE consumer blocks | 2026-09-25 | Open Food Facts | pack | | 5000159551694 | imgid 1, 2091 x 985 px, uploaded 2023-09-01 | CC BY-SA 3.0 | Open Food Facts contributors | off | | |
| 161 | 163 | | off-front | https://images.openfoodfacts.org/images/products/500/015/955/1694/2.jpg | Mars 51 g bars with a Spanish import sticker | 2026-09-25 | Open Food Facts | pack | | 5000159551694 | imgid 2, 3264 x 1734 px, uploaded 2024-07-01 | CC BY-SA 3.0 | Open Food Facts contributors | off | | |
| 162 | 164 | | bestway | https://www.bestwaywholesale.co.uk/product/21326-1 | Mars Milk Chocolate Bar 51g, Bestway Wholesale | 2026-09-25 | Bestway Wholesale | retailer | | 5000159551694 | product code 21326, 48 x 51g, RSP GBP 1.19 | | | | | |
| 163 | 165 | | devo | https://devo.co.uk/shop/news-food-and-wine-sw16/product/mars-chocolate-bar-51g-5000159551694 | Mars Chocolate Bar 51 g at News Food and Wine, Streatham, London | 2026-09-25 | Devo | retailer | | 5000159551694 | GBP 0.85, in stock | | | | | |
| 164 | 166 | | cheapfood | https://cheapfood.co.uk/mars-chocolate-bar-51g/ | Mars Chocolate Bar - 51g, Best Before it's Gone Ltd | 2026-09-25 | Best Before it's Gone | retailer | | 5000159551694 | SKU SM2383119265, GBP 0.40, out of stock | | | | | |
| 165 | 167 | | iberinform | https://www.iberinform.es/empresa/279321/overseas-imports | Overseas Imports SL, Iberinform company report | 2026-09-25 | Iberinform | registry | | B38437109 | | | | | | |
| 166 | 168 | | wp-mars | https://en.wikipedia.org/wiki/Mars_bar | Mars bar | 2026-09-25 | Wikipedia | publication | | | History, Sizes | CC BY-SA | Wikipedia contributors | | | |
| 167 | 169 | | mars40g | https://www.deebee.co.uk/news/view/141 | EXCLUSIVE: Mars Wrigley's latest 'shrinkflation' slashes Mars bar sizes by nearly a quarter without lowering prices | 2026-09-25 | Dee Bee Wholesale | publication | 2026-04-09 | | | | Jack Courtez, Better Retailing | https://www.betterretailing.com/mars-wrigley-shrink-40g/ | | |
| 168 | 170 | | gs1-gdsn | https://www.gs1.org/docs/gdsn/stats/gdsn_trading_partners.pdf | GDSN trading partners: GS1 GDSN member companies and their GLNs | 2026-09-25 | GS1 | registry | | 5000159000000 | GLN 5000159000000, MARS CHOCOLAT FRANCE | | | | | |
| 169 | 171 | <!--/references--> | |
| 170 | 172 | ||
| 171 | 173 | ## About <!--about--> | |
| 172 | 174 | Mars 51 g under barcode 5000159551694 is the later code of the standard single Mars bar for Britain and Ireland: milk chocolate (40 %) with a soft nougat (32 %) and caramel centre (27 %), the bar Forrest Mars Sr. first made in Slough in 1932.[^wp-mars][^bestway] Its recipe uses whey permeate where the earlier 51 g article listed lactose, whey powder and milk protein, and a bar gives 948 kJ (225 kcal).[^bestway] The wrapper carries a GB consumer block for Mars Wrigley Confectionery and an Irish one for Mars Foods Ireland Ltd.[^off-back] Bars photographed in 2024 carry a sticker of the Spanish importer Overseas Imports S.L. of Benissa.[^off-front] Bestway Wholesale lists it in cases of 48, and London convenience stores sold it at GBP 0.85 in September 2026.[^bestway][^devo] | |
| 173 | 175 | ||
| 174 | 176 | The single bar settled at 51 g in 2013 and was cut again in Britain to 40 g from March 2026 at an unchanged 75p price-mark.[^wp-mars][^mars40g] The clearance retailer Best Before it's Gone has listed this barcode at GBP 0.40 a bar.[^cheapfood] Overseas Imports, the importer on the Spanish sticker, is registered in Benissa under tax number B38437109 and trades as The Food Co.[^iberinform] | |
| 175 | 177 | <!--/about--> |
Source of v1
# Mars 51 g <!--product-->
## Identity <!--identity-->
gtin: 05000159551694
name: Mars 51 g
family: family/mars-bar
default_observation: bestway-sheet
summary: The later 51 g single Mars bar for Britain and Ireland, with whey permeate in place of the older lactose and whey powder, also imported into Spain.
brand: brand/mars
category: category/10000045
net_content: 51 g
country_of_sale: GB, IE, ES
pack_quantity: 1
piece_count: 1
pack_format: flow wrap
<!--/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, sold worldwide outside the United States. |
| food_business_operator | company/mars-wrigley-confectionery-uk | GB | | | | printed | ^off-back | The GB consumer block on the back prints "Freepost Mars Wrigley Confection[ery]" with the UK freephone 0800 952 0077 and www.mars.co.uk; the right edge of the photograph cuts the name. |
| imported_by | company/overseas-imports | ES | | | | printed | ^off-front | A Spanish sticker on the bars photographed for this barcode reads "Importado por OVERSEAS IMPORTS S.L. ESB38437109, C/ Isaac Peral, 26, P.I. La Pedrera, Benissa 03720 (Alicante)". |
| gs1_prefix_owner | company/mars-wrigley-confectionery-france | | | | | sourced | ^gs1-gdsn | GS1's own GDSN trading-partner list carries GLN 5000159000000 against MARS CHOCOLAT FRANCE, the former name of Mars Wrigley Confectionery France; a GLN is issued out of its holder's company prefix. |
<!--/relations-->
## Markets <!--markets-->
| country | status | source | note | observed | condition | origin | price |
| ------- | ------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- | --------- | ------ | -------- |
| GB | printed | ^off-back | The back of the wrapper prints a GB-marked consumer block with the UK freephone 0800 952 0077, www.mars.co.uk and a Freepost address for Mars Wrigley Confectionery. | 2023-09-01 | | | |
| GB | sourced | ^bestway | Bestway Wholesale lists "Mars Milk Chocolate Bar 51g", retail EAN 5000159551694, in cases of 48 with an RSP of GBP 1.19; the RSP is a recommended price, not a shelf price, so price is empty. | 2026-09-25 | new | | |
| GB | sourced | ^devo | News Food and Wine, Streatham, London SW16, lists "Mars Chocolate Bar" at 51 g on the Devo delivery app with this barcode in the listing URL. | 2026-09-25 | new | | GBP 0.85 |
| GB | sourced | ^cheapfood | The Daventry clearance retailer Best Before it's Gone lists "Mars Chocolate Bar - 51g" with barcode 5000159551694 at GBP 0.40 each, out of stock; it sells short-dated and surplus stock, so the price is a clearance price. | 2026-09-25 | new | | GBP 0.40 |
| IE | printed | ^off-back | The same back prints an IE-marked consumer block, "Mars Foods Ireland Ltd, PO Box 3856", with https://ire.mars.com/ and an Irish 1890 number. | 2023-09-01 | | | |
| ES | printed | ^off-front | The bars photographed for this barcode carry a Spanish import sticker naming Overseas Imports S.L. of Benissa (Alicante) with a Spanish sanitary registration number. | 2024-07-01 | | | |
<!--/markets-->
## Aliases <!--aliases-->
| name | type | locale | from | until |
| --------------------------- | ------ | ------ | ---- | ----- |
| Mars Bar Single 51g | search | en | | |
| Mars Milk Chocolate Bar 51g | search | en | | |
| Mars Chocolate Bar 51g | search | en | | |
| Mars Standard Single | search | en | | |
<!--/aliases-->
## Ingredients <!--ingredients-->
| ingredient | role | kind | note | percent | basis | market | from | until | source | id | observation | parent_id | position | printed_name | state |
| ------------------------------ | ---------- | ----- | --------------------- | ------- | ----- | ------ | ---- | ----- | -------- | --- | ------------- | --------- | -------- | -------------------------- | ----- |
| ingredient/sugar | | label | | | | | | | ^bestway | b1 | bestway-sheet | | 1 | Sugar | known |
| ingredient/glucose-syrup | | label | | | | | | | ^bestway | b2 | bestway-sheet | | 2 | Glucose Syrup | known |
| ingredient/skimmed-milk-powder | | label | | | | | | | ^bestway | b3 | bestway-sheet | | 3 | Skimmed MILK Powder | known |
| ingredient/cocoa-butter | | label | | | | | | | ^bestway | b4 | bestway-sheet | | 4 | Cocoa Butter | known |
| ingredient/cocoa-mass | | label | | | | | | | ^bestway | b5 | bestway-sheet | | 5 | Cocoa Mass | known |
| ingredient/sunflower-oil | | label | | | | | | | ^bestway | b6 | bestway-sheet | | 6 | Sunflower Oil | known |
| ingredient/whey-permeate | | label | | | | | | | ^bestway | b7 | bestway-sheet | | 7 | Whey Permeate (MILK) | known |
| ingredient/palm-fat | | label | | | | | | | ^bestway | b8 | bestway-sheet | | 8 | Palm Fat | known |
| ingredient/butterfat | | label | printed as "milk fat" | | | | | | ^bestway | b9 | bestway-sheet | | 9 | MILK Fat | known |
| ingredient/fat-reduced-cocoa | | label | | | | | | | ^bestway | b10 | bestway-sheet | | 10 | Fat-Reduced Cocoa Powder | known |
| ingredient/barley-malt-extract | | label | | | | | | | ^bestway | b11 | bestway-sheet | | 11 | BARLEY Malt Extract | known |
| ingredient/salt | | label | | | | | | | ^bestway | b12 | bestway-sheet | | 12 | Salt | known |
| ingredient/soy-lecithin | emulsifier | label | | | | | | | ^bestway | b13 | bestway-sheet | | 13 | Emulsifier (SOYA Lecithin) | known |
| ingredient/egg-white-powder | | label | | | | | | | ^bestway | b14 | bestway-sheet | | 14 | EGG White Powder | known |
<!--/ingredients-->
## 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 |
| ------------- | ------------------------------------------------- | ----- | ------ | -------- | ---------- | ----------- | ---------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------- | ------------------------ | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ |
| bestway-sheet | Label data on Bestway Wholesale's product sheet | label | GB | en | | | 2026-09-25 | supported | Milk chocolate (40%) with soft nougat (32%) and caramel centre (27%). Ingredients: Sugar, Glucose Syrup, Skimmed MILK Powder, Cocoa Butter, Cocoa Mass, Sunflower Oil, Whey Permeate (MILK), Palm Fat, MILK Fat, Fat-Reduced Cocoa Powder, BARLEY Malt Extract, Salt, Emulsifier (SOYA Lecithin), EGG White Powder. (May Contain: PEANUTS And Other NUTS). MILK Chocolate Contains MILK Solids 14% Minimum. | listed | | ^bestway | The wholesaler's sheet prints retail EAN 5000159551694, the standardised name, the full statement and a nutrition table per 100 g and per 51 g, with the "100% Responsibly Sourced Cocoa" wording of the wrapper. | 51 g | 1 | 1 | flow wrap | |
| gb-ie-2023 | English back label with GB and IE consumer blocks | label | GB, IE | en | | | 2023-09-01 | supported | Milk chocolate (40%) with soft nougat (32%) and caramel centre (27%). Ingredients: sugar, glucos[e syrup], skimmed milk powder, cocoa butter, cocoa mass, sunflower oil, whey permeate (milk), palm fat, m[ilk fat], fat-reduced cocoa powder, barley malt extract, salt, emulsifier (soya lecithin), egg white powde[r. (May] contain: peanuts and other nuts). Milk chocolate contains milk solids 14% minimum. Milk cho[colate] contains vegetable fats in addition to cocoa [butter]. Suitable for Vegetarians. | listed | | ^off-back | Read from the 2091 x 985 px Open Food Facts photograph uploaded 2023-09-01; the right edge of the wrapper is outside the frame, and the bracketed words are the ones it cuts. The statement matches the Bestway sheet word for word where both are legible. The nutrition table at the left edge shows only its percentage column. The strip also prints the "Responsibly Sourced Cocoa 100%" badge with a QR code. | 51 g | 1 | 1 | flow wrap | |
| es-2024 | Fronts of the bars with a Spanish import sticker | label | ES | es | | | 2024-07-01 | supported | | | | ^off-front | Read from the 3264 x 1734 px photograph uploaded 2024-07-01 of a shelf-ready tray of bars. One wrapper carries a white sticker, "Importado por OVERSEAS IMPORTS S.L. ESB38437109, C/ Isaac Peral, 26, P.I. La Pedrera, Benissa 03720 (Alicante)", with a sanitary registration number; the front energy flash reads "...442 kcal" and the lower edge "Free from Artificial Colours". | 51 g | 1 | 1 | flow wrap | |
<!--/observations-->
## Nutrition panels <!--nutrition_panels-->
| id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note |
| ------- | ------------- | ------------------------------ | ----- | ----------- | ------------------------------- | ----------- | ------------ | -------- | ------------------------------------------------- |
| bw-100g | bestway-sheet | Nutritional Information /100 g | 100 g | as_sold | | transcribed | | ^bestway | As the wholesaler's sheet prints the label table. |
| bw-51g | bestway-sheet | Nutritional Information /51 g | 51 g | as_sold | printed serving column, one bar | transcribed | | ^bestway | |
<!--/nutrition_panels-->
## Nutrition values <!--nutrition_values-->
| panel | nutrient | value | qualifier | value_max | dv_percent | printed_value | state | method | source | note |
| ------- | --------------- | ----- | --------- | --------- | ---------- | ------------- | ----- | ------- | -------- | ---- |
| bw-100g | energy_kj | 1858 | exact | | | 1858kJ | known | printed | ^bestway | |
| bw-100g | energy_kcal | 442 | exact | | | 442kcal | known | printed | ^bestway | |
| bw-100g | fat_g | 16 | exact | | | 16g | known | printed | ^bestway | |
| bw-100g | saturated_fat_g | 7.5 | exact | | | 7.5g | known | printed | ^bestway | |
| bw-100g | carbohydrate_g | 70 | exact | | | 70g | known | printed | ^bestway | |
| bw-100g | sugars_g | 61 | exact | | | 61g | known | printed | ^bestway | |
| bw-100g | polyols_g | 0 | exact | | | 0g | known | printed | ^bestway | |
| bw-100g | protein_g | 4.5 | exact | | | 4.5g | known | printed | ^bestway | |
| bw-100g | salt_g | 0.68 | exact | | | 0.68g | known | printed | ^bestway | |
| bw-51g | energy_kj | 948 | exact | | | 948kJ | known | printed | ^bestway | |
| bw-51g | energy_kcal | 225 | exact | | | 225kcal | known | printed | ^bestway | |
| bw-51g | fat_g | 8.1 | exact | | | 8.1g | known | printed | ^bestway | |
| bw-51g | saturated_fat_g | 3.8 | exact | | | 3.8g | known | printed | ^bestway | |
| bw-51g | carbohydrate_g | 36 | exact | | | 36g | known | printed | ^bestway | |
| bw-51g | sugars_g | 31 | exact | | | 31g | known | printed | ^bestway | |
| bw-51g | protein_g | 2.3 | exact | | | 2.3g | known | printed | ^bestway | |
| bw-51g | salt_g | 0.34 | exact | | | 0.34g | known | printed | ^bestway | |
<!--/nutrition_values-->
## Allergen declarations <!--allergens-->
| observation | allergen | declaration | source | note |
| ------------- | -------- | ----------- | --------- | ------------------------------------------------------- |
| bestway-sheet | milk | contains | ^bestway | MILK in capitals in the statement; "Contains Milk". |
| bestway-sheet | gluten | contains | ^bestway | "BARLEY Malt Extract"; "Contains Barley". |
| bestway-sheet | soybeans | contains | ^bestway | "Emulsifier (SOYA Lecithin)"; "Contains Soya". |
| bestway-sheet | eggs | contains | ^bestway | "EGG White Powder"; "Contains Eggs". |
| bestway-sheet | peanuts | may_contain | ^bestway | "(May Contain: PEANUTS And Other NUTS)". |
| bestway-sheet | nuts | may_contain | ^bestway | Same statement. |
| gb-ie-2023 | milk | contains | ^off-back | milk set in bold. |
| gb-ie-2023 | gluten | contains | ^off-back | barley in bold. |
| gb-ie-2023 | soybeans | contains | ^off-back | soya in bold. |
| gb-ie-2023 | eggs | contains | ^off-back | egg in bold. |
| gb-ie-2023 | peanuts | may_contain | ^off-back | "...contain: peanuts and other nuts)", peanuts in bold. |
| gb-ie-2023 | nuts | may_contain | ^off-back | nuts in bold, in the same statement. |
<!--/allergens-->
## Label claims <!--claims-->
| observation | claim | kind | source | note |
| ----------- | ------------------------------ | ----- | ---------- | ------------------------------------------------------------------------------------------------------------ |
| gb-ie-2023 | Suitable for Vegetarians | label | ^off-back | |
| gb-ie-2023 | 100% Responsibly Sourced Cocoa | label | ^off-back | Footnoted as a mass-balance claim: Mars buys a volume of responsibly sourced cocoa equal to the volume used. |
| es-2024 | Free from Artificial Colours | label | ^off-front | Printed along the lower edge of the wrapper; the rest of the line is out of view. |
<!--/claims-->
## Research gaps <!--research_gaps-->
| observation | domain | state | detail | source |
| ----------- | ------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------- |
| | identity | unknown | Mars cut the British single bar from 51 g to 40 g from March 2026, and trade figures showed a 51 g article as discontinued; no Mars page names the barcode of either bar, so whether this code was withdrawn with that change is open. Bestway still offered it on 2026-09-25. | ^mars40g |
| | nutrition | disputed | The typed Open Food Facts record for this barcode gives 1849 kJ, 16 g fat and 0.67 g salt per 100 g against the Bestway table's 1858 kJ and 0.68 g; its 441.2 kcal is a computed figure, so the record is not used. | ^off |
| gb-ie-2023 | nutrition | unknown | The 2023 back photograph shows only the percentage column of the nutrition table, so the panels come from the Bestway sheet. | ^off-back |
| | 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. | ^gs1-gdsn |
| | markets | unknown | amazon.co.uk searched on 2026-09-25 for "Mars bar 51g single", "mars" and 5000159551694 through web search, since the store answers this agent with a WAF challenge. Single-bar hits B00WUJH40I and B00J3TPS1A show the older lactose and whey powder recipe of 5000159470476 and print no barcode; the rest are 10-, 24-, 35- and 48-bar boxes. | |
| | markets | unknown | amazon.ie searched on 2026-09-25 for "Mars bar 51g", "mars" and 5000159551694 through web search: only a 24-bar box (B0BJHNCG72) and unrelated Mars products; no single bar printing this barcode. | |
| | markets | unknown | amazon.es searched on 2026-09-25 for "Mars barrita 51g", "mars" and 5000159551694 through web search: the single bar B002XM0EUY lists the continental recipe (whole milk powder, lactose), so it is the continental article, and the rest are 24-, 32- and 48-bar boxes. | |
<!--/research_gaps-->
## Research <!--research-->
structure_version: 2
reviewed_on: 2026-09-25
note: Built from the two Open Food Facts photographs (2023 back, 2024 front with a Spanish import sticker), Bestway Wholesale's product sheet printing the retail EAN, Devo and Best Before it's Gone listings and the family page's sources.
<!--/research-->
## Meta <!--meta-->
title: Mars 51 g single bar, later code (5000159551694)
description: The later British and Irish 51 g Mars bar with whey permeate: label ingredients, nutrition per 100 g and per bar, allergens, operator and Spanish importer.
<!--/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 |
| ----- | ---- | ------ | ------- | ----------- | --- | -------- | ---- | ------------------ | ----------------- | ---------------- | ------------ | ------------ | --------------- | ------------ | ---------------- | -------------- | --------------- | ------------ | ------------- | -------- | ----------- |
<!--/images-->
## References <!--references-->
| ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream |
| ---------- | -------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | ---------- | --------------------- | ----------- | ---------- | ------------- | -------------------------------------------- | ------------ | ------------------------------ | -------------------------------------------------------- |
| off | https://world.openfoodfacts.org/product/5000159551694 | Open Food Facts: Mars (5000159551694) | 2026-09-25 | Open Food Facts | catalogue | | 5000159551694 | | ODbL | Open Food Facts contributors | |
| off-back | https://images.openfoodfacts.org/images/products/500/015/955/1694/1.jpg | Back of the 51 g wrapper with the English statement and GB and IE consumer blocks | 2026-09-25 | Open Food Facts | pack | | 5000159551694 | imgid 1, 2091 x 985 px, uploaded 2023-09-01 | CC BY-SA 3.0 | Open Food Facts contributors | off |
| off-front | https://images.openfoodfacts.org/images/products/500/015/955/1694/2.jpg | Mars 51 g bars with a Spanish import sticker | 2026-09-25 | Open Food Facts | pack | | 5000159551694 | imgid 2, 3264 x 1734 px, uploaded 2024-07-01 | CC BY-SA 3.0 | Open Food Facts contributors | off |
| bestway | https://www.bestwaywholesale.co.uk/product/21326-1 | Mars Milk Chocolate Bar 51g, Bestway Wholesale | 2026-09-25 | Bestway Wholesale | retailer | | 5000159551694 | product code 21326, 48 x 51g, RSP GBP 1.19 | | | |
| devo | https://devo.co.uk/shop/news-food-and-wine-sw16/product/mars-chocolate-bar-51g-5000159551694 | Mars Chocolate Bar 51 g at News Food and Wine, Streatham, London | 2026-09-25 | Devo | retailer | | 5000159551694 | GBP 0.85, in stock | | | |
| cheapfood | https://cheapfood.co.uk/mars-chocolate-bar-51g/ | Mars Chocolate Bar - 51g, Best Before it's Gone Ltd | 2026-09-25 | Best Before it's Gone | retailer | | 5000159551694 | SKU SM2383119265, GBP 0.40, out of stock | | | |
| iberinform | https://www.iberinform.es/empresa/279321/overseas-imports | Overseas Imports SL, Iberinform company report | 2026-09-25 | Iberinform | registry | | B38437109 | | | | |
| wp-mars | https://en.wikipedia.org/wiki/Mars_bar | Mars bar | 2026-09-25 | Wikipedia | publication | | | History, Sizes | CC BY-SA | Wikipedia contributors | |
| mars40g | https://www.deebee.co.uk/news/view/141 | EXCLUSIVE: Mars Wrigley's latest 'shrinkflation' slashes Mars bar sizes by nearly a quarter without lowering prices | 2026-09-25 | Dee Bee Wholesale | publication | 2026-04-09 | | | | Jack Courtez, Better Retailing | https://www.betterretailing.com/mars-wrigley-shrink-40g/ |
| gs1-gdsn | https://www.gs1.org/docs/gdsn/stats/gdsn_trading_partners.pdf | GDSN trading partners: GS1 GDSN member companies and their GLNs | 2026-09-25 | GS1 | registry | | 5000159000000 | GLN 5000159000000, MARS CHOCOLAT FRANCE | | | |
<!--/references-->
## About <!--about-->
Mars 51 g under barcode 5000159551694 is the later code of the standard single Mars bar for Britain and Ireland: milk chocolate (40 %) with a soft nougat (32 %) and caramel centre (27 %), the bar Forrest Mars Sr. first made in Slough in 1932.[^wp-mars][^bestway] Its recipe uses whey permeate where the earlier 51 g article listed lactose, whey powder and milk protein, and a bar gives 948 kJ (225 kcal).[^bestway] The wrapper carries a GB consumer block for Mars Wrigley Confectionery and an Irish one for Mars Foods Ireland Ltd.[^off-back] Bars photographed in 2024 carry a sticker of the Spanish importer Overseas Imports S.L. of Benissa.[^off-front] Bestway Wholesale lists it in cases of 48, and London convenience stores sold it at GBP 0.85 in September 2026.[^bestway][^devo]
The single bar settled at 51 g in 2013 and was cut again in Britain to 40 g from March 2026 at an unchanged 75p price-mark.[^wp-mars][^mars40g] The clearance retailer Best Before it's Gone has listed this barcode at GBP 0.40 a bar.[^cheapfood] Overseas Imports, the importer on the Spanish sticker, is registered in Benissa under tax number B38437109 and trades as The Food Co.[^iberinform]
<!--/about-->