Mars, commonly known as Mars bar, is the name of two varieties of
chocolate bar
A chocolate bar is a confection containing chocolate, which may also contain layerings or mixtures that include nut (fruit), nuts, fruit, caramel, nougat, and wafers. A flat, easily breakable, chocolate bar is also called a tablet. In some variet ...
produced by
Mars Inc. It was first manufactured in 1932 in
Slough
Slough () is a town in Berkshire, England, in the Thames Valley, west of central London and north-east of Reading, at the intersection of the M4, M40 and M25 motorways. It is part of the historic county of Buckinghamshire. In 2021, the ...
, England, by
Forrest Mars Sr.
Forrest Edward Mars Sr. (March 21, 1904 – July 1, 1999) was an American billionaire businessman and the driving force of the candy company Mars Inc. in 1911 as well as founder of Pedigree Petfoods in 1957 He is best known for introducing Milky ...
The bar consists of
caramel
Caramel ( or ) is a range of food ingredients made by heating sugars to high temperatures. It is used as a flavoring in puddings and desserts, as a filling in bonbons or candy bars, as a topping for ice cream and custard, and as a colorant ...
and
nougat
Nougat refers to a variety of similar confections made from a sweet paste hardened to a chewy or crunchy consistency..
The usual version in Western and Southern Europe is made from a mousse of whipped egg white sweetened with sugar or ho ...
coated with
milk chocolate
Milk chocolate is a form of solid chocolate containing Chocolate liquor, cocoa, sugar and milk. It is the most consumed types of chocolate, type of chocolate, and is used in a wide diversity of chocolate bar, bars, tablets and other confectione ...
.
A different Mars bar was produced in the United States with nougat and toasted
almond
The almond (''Prunus amygdalus'', Synonym (taxonomy)#Botany, syn. ''Prunus dulcis'') is a species of tree from the genus ''Prunus''. Along with the peach, it is classified in the subgenus ''Amygdalus'', distinguished from the other subgenera ...
s covered in milk chocolate, and later also with caramel. This was discontinued in 2002, then revived in a slightly different form the following year under the name "
Snickers
Snickers (stylized in all caps) is a chocolate bar consisting of nougat topped with Caramel#Candy, caramel and peanuts, all encased in milk chocolate. The bars are made by the American company Mars Inc. The annual global sales of Snickers is ...
Almond".
Versions
Two different chocolate bars have been sold as Mars bars.
UK and worldwide

In most of the world, a Mars bar is a chocolate bar with nougat and caramel, coated with milk chocolate.
It was first manufactured in
Slough
Slough () is a town in Berkshire, England, in the Thames Valley, west of central London and north-east of Reading, at the intersection of the M4, M40 and M25 motorways. It is part of the historic county of Buckinghamshire. In 2021, the ...
, England under the Mars bar name in 1932 by
Forrest Mars Sr.
Forrest Edward Mars Sr. (March 21, 1904 – July 1, 1999) was an American billionaire businessman and the driving force of the candy company Mars Inc. in 1911 as well as founder of Pedigree Petfoods in 1957 He is best known for introducing Milky ...
, son of American candy maker
Frank C. Mars. He modelled it after his father's
Milky Way bar, which was already popular in the US, adjusting the recipe to better suit European tastes.
He had a staff of twelve people, and originally advertised it as using Cadbury's chocolate
couverture.
The bar and the proportions of the main components have changed over the years. With minor variations, this version is sold worldwide, except for the US, and is packaged in a black wrapper with red gold-edged lettering. Three million Mars bars accompanied the
British task force to the Falklands in 1982.
The Mars brand logo went through several changes. In 1932, the first logo had a black colour font and was tilted. In 1978, the logo was rebranded to being white and having a star on the side. In 1988, the Mars bar had gone through a significant change with its logo. At that time, the logo was given a more bombastic treatment, written with red thick font and golden outlier. This logo became the standard-form for future logos. The logo then changed again, in the early 2000s. This time the logo was given a much more modern and sleeker look. It was updated to have a more cursive appearance to it and has retained that appearance ever since.
The nougat was made lighter, the chocolate on top became thinner, and the overall weight of the bar was reduced slightly. The slogan "Pleasure you can't measure" was intended to appeal more to women and youths.
Various sizes are made. As of 2008: miniature bars called "Fun Size" () and "Snack Time" () (both sold in multiple packs); a larger multi-pack size of ; the regular-sized single bar, and a "king-size" bar, since replaced by "Mars Duo" (), a pack of two bars. The regular single bar contains 260 calories.
In the second half of 2008, Mars UK reduced the weight of regular bars from to . Although the reduction in size was not publicised at the time, Mars claimed the change was designed to help tackle the obesity crisis in the UK, but later acknowledged that the real reason for the change was rising costs. In 2013, the "standard" Mars bar was further reduced to , for a reduction of about 20% in 5 years; it continued to be in 2023.
In May 2009, the Mars bar size reduced from to in Australia, citing portion sizes and the obesity debate as the primary driver. By 2022 it was noted the Mars bar size had been reduced further to in Australia and New Zealand.
United States
In the United States, the Mars bar was a candy bar with
nougat
Nougat refers to a variety of similar confections made from a sweet paste hardened to a chewy or crunchy consistency..
The usual version in Western and Southern Europe is made from a mousse of whipped egg white sweetened with sugar or ho ...
and toasted
almond
The almond (''Prunus amygdalus'', Synonym (taxonomy)#Botany, syn. ''Prunus dulcis'') is a species of tree from the genus ''Prunus''. Along with the peach, it is classified in the subgenus ''Amygdalus'', distinguished from the other subgenera ...
s coated with
milk chocolate
Milk chocolate is a form of solid chocolate containing Chocolate liquor, cocoa, sugar and milk. It is the most consumed types of chocolate, type of chocolate, and is used in a wide diversity of chocolate bar, bars, tablets and other confectione ...
. The same candy bar is known outside the United States as a Mars Almond bar. Originally it did not have
caramel
Caramel ( or ) is a range of food ingredients made by heating sugars to high temperatures. It is used as a flavoring in puddings and desserts, as a filling in bonbons or candy bars, as a topping for ice cream and custard, and as a colorant ...
, but at some point caramel was added. It was discontinued in 2002.
In 2003, the company introduced a replacement called
Snickers Almond containing nougat, almonds, caramel, and a milk chocolate coating,
It is similar to the Mars bar, with some differences; for example, the pieces of almond are smaller in Snickers Almond than in the Mars bar.
The Mars bar was relaunched in January 2010 (initially exclusively through
Walmart
Walmart Inc. (; formerly Wal-Mart Stores, Inc.) is an American multinational retail corporation that operates a chain of hypermarkets (also called supercenters), discount department stores, and grocery stores in the United States and 23 other ...
stores), discontinued again at the end of 2011, and relaunched again in September 2016 by
Ethel M
Ethel (also '' æthel'') is an Old English word meaning "noble", today often used as a feminine given name.
Etymology and historic usage
The word means ''æthel'' "noble".
It is frequently attested as the first element in Anglo-Saxon names, ...
, the gourmet chocolate subsidiary of Mars, Inc. The 2016 version was the "original American recipe", without caramel. It was available in their stores and on Amazon.com.
The European or Canadian version of the Mars bar is sold in some American grocery stores that stock imported food products.
Spinoff products
Other products have also been released using the Mars name.
*Mars Bites/Bouchées (Canada)
*Mars Milk (1998)
*Mars Delight (discontinued in the UK in 2008)
*Mars Choc Brownie
*Mars Extra Chocolate Drink
*No Added Sugar Drink
*Mars Ice Cream bars
*Mars and Mars Midnight Ice Cream bars
*McVities Mars Mini Rolls
*Mars Biscuits (Australia and the UK – a biscuit with Mars topping)
*Mars Pods (Australia and New Zealand – a small crunchy wafer shell with Mars filling, also available in variants)
*Mars Rocks
*Mars Planets
*Mars Mix
*Mars Frozen Dessert Bar
*Mars Protein – A 50 g Mars bar with less sugar and more protein; packaging states "More protein, 40% less sugar".
Custom packaging

The Original Mars bar in "Believe" packaging was sold in the UK from 18 April 2006 until the end of the
2006 FIFA World Cup
The 2006 FIFA World Cup was the 18th FIFA World Cup, the quadrennial international Association football, football world championship tournament. It was held from 9 June to 9 July 2006 in Germany, which had won the right to FIFA World Cup hosts ...
in July. "Believe" took prominence on the packaging ("Original Mars" appeared in smaller print) to indicate support for the
England national football team
The England national football team have represented England in international Association football, football since the first international match in 1872. It is controlled by the Football Association (FA), the governing body for football in Eng ...
. Advertising in other nations of the UK was tailored to reflect their own teams after public condemnation, although in Scotland the "Believe" packaging was still used – causing negative publicity.
On 30 July 2008, the
Tasmania
Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The sta ...
n government announced that it had secured a major sponsor, Mars for a bid to enter the
Australian Football League
The Australian Football League (AFL) is the pre-eminent professional sports, professional competition of Australian rules football. It was originally named the Victorian Football League (VFL) and was founded in 1896 as a breakaway competition ...
in a deal worth $4 million over 3 years and will temporarily change the name of its top-selling chocolate bar in Australia to Believe, to help promote Tasmania's cause.
Mars were re-branded "Hopp" ("Go!" in English) in Switzerland during
UEFA Euro 2008
The 2008 UEFA European Football Championship, commonly referred to as UEFA Euro 2008 or simply Euro 2008, was the 13th UEFA European Championship, a quadrennial association football, football tournament contested by the member nations of UEFA ( ...
. Like the "Believe" packaging sold in the UK in 2006, "Original Mars" was also shown in smaller print.
In 2010, to promote England's involvement in the
2010 FIFA World Cup
The 2010 FIFA World Cup was the 19th FIFA World Cup, the world championship for List of men's national association football teams, men's national Association football, football teams. It took place in South Africa from 11 June to 11 July 2010. ...
, the background of the UK Mars packaging became the St. George cross.
Advertising slogans
Former
*''"Maxis from Mars"'' – United Kingdom (1969) A number of white
Austin Maxi
The Austin Maxi is a medium-sized, 5-door hatchback family car that was produced by Austin Motor Company, Austin and later British Leyland between 1969 and 1981.
Despite its practical design and remarkable space efficiency (it is shorter, narrow ...
s were driven around the country with numbers on the doors. If the number inside a Mars Bar wrapper matched that on the car, the purchaser of the Mars Bar won the car.
*''"Mars bringt verbrauchte Energie sofort zurück."'' (Mars replenishes lost energy instantaneously) - Germany (1960s)
*''"Mars macht mobil bei Arbeit, Sport und Spiel"'' (Mars mobilises you at work, sports and play) – Germany (1980s and 1990s)
*''"A Mars a day helps you work, rest and play"'' – Australia, Canada, New Zealand, United Kingdom
*''"Out of this world!"'' – Australia, UK
*''"Earth – what you'd eat if you lived on Mars"'' – New Zealand
*''"Another way to make your day"'' – UK (2005)
*''"Feels good to be back! "'' – Australia (2005)
*''"An almond in every bite!"'' – US
*''"Un Mars, et ça repart"'' (A Mars, and here we go again) – France (late 1990s and renewed from 2006)
*''"Mars, que du bonheur"'' (Mars, only happiness) – France
*''"Mars, haal eruit wat erin zit!"'' (Mars, get the most out of it!) – Netherlands, Belgium
*''"Who knows? In 1,000 years we could all be sitting on Mars eating Earth bars."'' – United Kingdom (a full-page advertisement placed in the official Guide Book for the
Millennium Dome
The Millennium Dome was the original name of the large dome-shaped building on the Greenwich Peninsula in South East (London sub region), South East London, England, which housed a major exhibition celebrating the beginning of the third millen ...
in 2000)
Current
*''"Mars your day"'' – Australia
*''"A Mars a day helps you work, rest and play"'' – UK, Australia
*''"Recharge on Mars"'' – Canada
*''"Mars, pleasure you just can't measure"'' – Europe
*''"Un coup de barre? Mars et ça repart!"'' (Feeling tired? A Mars and here we go again!) – France
*''"Nimm Mars, gib Gas"'' (Take Mars, step on the gas) – Germany
*''"Mars, momento di vero godimento"'' (Mars, a moment of pure enjoyment) – Italy
*''"Mars, geeft je energie"'' (Gives you energy) – The Netherlands and Flanders, Belgium
*''"Work-Rest-Play"'' – UK (later ''"Work-Rest-Play your part"'')
*''"Turn Up the Heat!"'' – (UK promotional packs in 2010)
Deep-fried Mars bar

First reports of Mars bars coated with batter and deep-fried being sold in
Stonehaven
Stonehaven ( ) is a town on the northeast coast of Scotland, south of Aberdeen. It had a population of 11,177 at th2022 Census
Stonehaven was formerly the county town of Kincardineshire, succeeding the now abandoned town of Kincardine, Aberd ...
, Scotland
date back to 1995. Mars says that it is "not authorised or endorsed".
Deep-fried Mars bars were also sold in New York.
In
Kathmandu
Kathmandu () is the capital and largest city of Nepal, situated in the central part of the country within the Kathmandu Valley. As per the 2021 Nepal census, it has a population of 845,767 residing in 105,649 households, with approximately 4 mi ...
,
Nepal
Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked country in South Asia. It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain. It borders the Tibet Autonomous Region of China Ch ...
,
momo dumplings in tourist areas have used Mars bars as an unusual filling.
Recalls
In July 2005, Mars bars, along with the
Snickers
Snickers (stylized in all caps) is a chocolate bar consisting of nougat topped with Caramel#Candy, caramel and peanuts, all encased in milk chocolate. The bars are made by the American company Mars Inc. The annual global sales of Snickers is ...
bar, were recalled due to an anonymous extortion attempt against
Star City Casino
The Star Sydney (formerly Star City Casino and prior to that, Sydney Harbour Casino) in Pyrmont, Sydney, is the second largest casino in Australia after Melbourne's Crown Casino. Overlooking Darling Harbour, The Star, owned by Star Entertainm ...
in Sydney.
The extortionist claimed to have poisoned seven Mars and Snickers bars at random stores in
New South Wales
New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...
. As a result,
Masterfoods
MasterFoods is a brand of condiments manufactured by Mars Inc.
History
MasterFoods was created by Henry Lewis in Australia in 1945. Originally launched as "Henry Lewis & Company" in 1926, they began by importing specialty international foods and ...
Corporation, the company that manufactures Mars bars in Australia, recalled the entire Mars and Snickers product from store shelves in New South Wales.
In the later half of August 2005, the threat to the public was deemed negligible and the bars returned to shelves.
In February 2016, Mars, Snickers and various other Mars, Inc. chocolate products were recalled in 55 countries in Europe, the Middle East and Asia. The precautionary recall was issued after a customer found pieces of plastic in a Snickers bar purchased in Germany. The error was traced back to a Mars, Inc. factory in
Veghel
Veghel () is a town and a former municipality in Southern Netherlands. On 1 January 2017 Veghel, together with Schijndel and Sint-Oedenrode, merged into a new municipality called Meierijstad. This created the largest municipality of the provi ...
, The Netherlands.
Animal products controversy
In May 2007, Mars UK announced that Mars bars, along with many of their other products such as
Snickers
Snickers (stylized in all caps) is a chocolate bar consisting of nougat topped with Caramel#Candy, caramel and peanuts, all encased in milk chocolate. The bars are made by the American company Mars Inc. The annual global sales of Snickers is ...
,
Maltesers
Maltesers are a British confectionery product manufactured by Mars Inc. First sold in the UK in 1937, they were originally aimed at women. They have since been sold in Europe, South Africa, Australia, New Zealand, Canada, United States and Midd ...
,
Minstrels and
Twix
Twix is a chocolate bar made by Mars Inc., consisting of a biscuit applied with other confectionery toppings and coatings (most frequently caramel and milk chocolate).The biscuit is typically topped with caramel and then coated with milk chocol ...
would no longer be suitable for vegetarians because of the introduction of
rennet
Rennet () is a complex set of enzymes produced in the stomachs of ruminant mammals. Chymosin, its key component, is a protease, protease enzyme that curdling, curdles the casein in milk. In addition to chymosin, rennet contains other enzymes, su ...
, a chemical sourced from calves' stomachs used in the production of
whey
Whey is the liquid remaining after milk has been curdled and strained. It is a byproduct of the manufacturing of cheese or casein and has several commercial uses. Sweet whey is a byproduct resulting from the manufacture of rennet types of hard c ...
.
Rabbi
A rabbi (; ) is a spiritual leader or religious teacher in Judaism. One becomes a rabbi by being ordained by another rabbi—known as ''semikha''—following a course of study of Jewish history and texts such as the Talmud. The basic form of t ...
nical authorities declared that the products remained
kosher
(also or , ) is a set of dietary laws dealing with the foods that Jewish people are permitted to eat and how those foods must be prepared according to Jewish law. Food that may be consumed is deemed kosher ( in English, ), from the Ashke ...
for Jewish consumption.
The decision was condemned by several groups, with the
Vegetarian Society
The Vegetarian Society of the United Kingdom (VSUK) is a British Registered charity in England, registered charity. It campaigns for dietary changes, licenses Vegetarian Society Approved trademarks for Vegetarianism, vegetarian and Veganism, v ...
stating that "at a time when more and more consumers are concerned about the provenance of their food, Mars' decision to use non-vegetarian whey is a backward step".
Mars later abandoned these plans, stating that it became "very clear, very quickly" that it had made a mistake.
Economics
It has been observed on several occasions that the price of a Mars bar correlates fairly accurately with the change in value of the
pound sterling
Sterling (symbol: £; currency code: GBP) is the currency of the United Kingdom and nine of its associated territories. The pound is the main unit of sterling, and the word '' pound'' is also used to refer to the British currency general ...
since
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, much in the way that the
Big Mac Index
The Big Mac Index is a price index published since 1986 by ''The Economist'' as an informal way of measuring the purchasing power parity (PPP) between two currency, currencies and providing a test of the extent to which market exchange rates re ...
has proven to be a good indicator of the actual relative purchasing power of world currencies.
Popular culture
Northern Irish pop-punk band
The Undertones
The Undertones are a rock band formed in Derry, Northern Ireland in 1974. From 1975 to 1983, the Undertones consisted of Feargal Sharkey (vocals), John O'Neill (rhythm guitar, vocals), Damian O'Neill (lead guitar, vocals), Michael Bradle ...
wrote and recorded a song called "
Mars Bars", released as a
B-side
The A-side and B-side are the two sides of phonograph record, vinyl records and Compact cassette, cassettes, and the terms have often been printed on the labels of two-sided music recordings. The A-side of a Single (music), single usually ...
in 1979.
1960s Liverpool band
Gerry and the Pacemakers
Gerry and the Pacemakers were an English beat group prominent in the 1960s Merseybeat scene. In common with the Beatles, they came from Liverpool, were managed by Brian Epstein and recorded by George Martin. Their early successes helped make ...
were originally known as
Gerry Marsden
Gerard Marsden MBE (24 September 1942 – 3 January 2021) was an English singer-songwriter, musician and television personality, best known for being leader of the Merseybeat band Gerry and the Pacemakers. He was the younger brother of fellow ...
and the Mars Bars before changing their name due to the objection of the Mars company.
Notes
References
External links
The Visible Mars bar project which shows the difference between US and UK Mars bars.
*
ttp://www.sopse.org.uk/ixbin/hixclient.exe?a=query&p=slough&f=generic_theme.htm&%3dtheme_record_id=sl-sl-mars Slough History Onlinebr>
Television commercial for original US Mars bar showing ingredients
{{Mars brands
Products introduced in 1932
British confectionery
Chocolate bars
Kosher food
Mars confectionery brands
Slough
Brand name confectionery