Stevia - wikipedia Stevia This article is about the sweetener. For other uses, see Stevia ( disambiguation ). Steviol, the basic building block of stevia 's sweet glycosides Stevia ( / ˈstiːviə, ˈstɛviə / ) is a sweetener and sugar substitute extracted from the leaves of the plant species Stevia rebaudiana. The active compounds of stevia are steviol glycosides ( mainly stevioside and rebaudioside ), which have up to 150 times the sweetness of sugar, are heat - stable, pH - stable, and not fermentable. Stevia 's taste has a slower onset and longer duration than that of sugar, and some of its extracts may have a bitter or licorice - like aftertaste at high concentrations. The legal status of stevia as a food additive or dietary supplement varies from country to country. In the United States, high - purity stevia glycoside extracts are generally recognized as safe ( GRAS ) and allowed as ingredients in food products, but stevia leaf and crude extracts do not have GRAS or Food and Drug Administration ( FDA ) approval for use in food. The European Union approved stevia additives in 2011, and in Japan, stevia has been widely used as a sweetener for decades. Contents 1 History 1.1 Discovery 1.2 Early regulation 1.3 Commercial use 2 Industrial extracts 3 Mechanism of action 4 Safety and regulations 4.1 Availability and legal status by country 5 See also 6 References History Discovery Stevia rebaudiana The plant Stevia rebaudiana has been used for more than 1,500 years by the Guaraní peoples of South America, who called it ka'a he'ê ( `` sweet herb '' ). The leaves have been used traditionally for hundreds of years in both Brazil and Paraguay to sweeten local teas and medicines, and as a `` sweet treat ''. The genus was named for Spanish botanist and physician Petrus Jacobus Stevus ( Pedro Jaime Esteve 1500 -- 1556 ), a professor of botany at the University of Valencia. In 1899, Swiss botanist Moisés Santiago Bertoni, while conducting research in eastern Paraguay, first described the plant and the sweet taste in detail. Only limited research was conducted on the topic until in 1931 two French chemists isolated the glycosides that give stevia its sweet taste. Early regulation During the 1990s, the United States Food and Drug Administration ( FDA ) received two petitions requesting that stevia be classified as generally recognized as safe ( GRAS ), but the FDA `` disagreed with ( the ) conclusions ( detailed in the petitions ) ''. In 2015, the FDA still regarded stevia as `` not an approved food additive '', and stated that it `` has not been affirmed as GRAS in the United States due to inadequate toxicological information ''. Stevia remained banned for all uses until the Dietary Supplement Health and Education Act of 1994, after which the FDA revised its stance and permitted stevia to be used as a dietary supplement, although still not as a food additive. In December 2008, the FDA gave a `` no objection '' approval for GRAS status to Truvia ( developed by Cargill and the Coca - Cola Company ) and PureVia ( developed by PepsiCo and the Whole Earth Sweetener Company, a subsidiary of Merisant ), both of which use rebaudioside A derived from the stevia plant. However, the FDA said that these products are not stevia, but a highly purified product. As of 2017, high - purity stevia glycosides are considered safe and allowable as ingredients in food products sold in the United States. In June 2016, the U.S. Customs and Border Protection issued an order of detention for stevia products made in China based on information that the products were made using prison labor. Early studies prompted the European Commission in 1999 to ban stevia 's use in food in the European Union pending further research. In 2006, research data compiled in the safety evaluation released by the World Health Organization found no adverse effects. Commercial use In the early 1970s, sweeteners such as cyclamate and saccharin were gradually decreased or removed from a variant formulation of Coca - Cola. Consequently, use of stevia as an alternative began in Japan, with the aqueous extract of the leaves yielding purified steviosides developed as sweeteners. The first commercial stevia sweetener in Japan was produced by the Japanese firm Morita Kagaku Kogyo Co., Ltd. in 1971. The Japanese have been using stevia in food products and soft drinks, ( including Coca Cola ), and for table use. In 2006, Japan consumed more stevia than any other country, with stevia accounting for 40 % of the sweetener market. In the mid-1980s, stevia became popular in U.S. natural foods and health food industries, as a noncaloric natural sweetener for teas and weight - loss blends. The makers of the synthetic sweetener NutraSweet ( at the time Monsanto ) asked the FDA to require testing of the herb. In 2007, the Coca - Cola Company announced plans to obtain approval for its stevia - derived sweetener, Rebiana, for use as a food additive within the United States by 2009, as well as plans to market Rebiana - sweetened products in 12 countries that allow stevia 's use as a food additive. In May 2008, Coca Cola and Cargill announced the availability of Truvia, a consumer brand stevia sweetener containing erythritol and Rebiana, which the FDA permitted as a food additive in December 2008. Coca - Cola announced intentions to release stevia - sweetened beverages in late December 2008. From 2013 onwards, Coca - Cola Life, containing stevia as a sweetener, was launched in various countries around the world. Shortly afterward, PepsiCo and Pure Circle announced PureVia, their brand of stevia - based sweetener, but withheld release of beverages sweetened with rebaudioside A until receipt of FDA confirmation. Since the FDA permitted Truvia and PureVia, both Coca Cola and PepsiCo have introduced products that contain their new sweeteners. As of 2006, China was the world 's largest exporter of stevioside products. Industrial extracts Rebaudioside A has the least bitterness of all the steviol glycosides in the Stevia rebaudiana plant. To produce rebaudioside A commercially, stevia plants are dried and subjected to a water extraction process. This crude extract contains about 50 % rebaudioside A. The various glycosides are separated and purified via crystallization techniques, typically using ethanol or methanol as solvent. Stevia extracts and derivatives are produced industrially and marketed under different trade names. Rebiana is an abbreviated name for the stevia extract, rebaudioside A. Truvia is the brand for an Erythritol, Rebiana, and natural flavoring concoction manufactured by Cargill and developed jointly with the Coca - Cola Company. PureVia is PepsiCo 's brand of rebiana. Mechanism of action This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( March 2017 ) Glycosides are molecules that contain glucose residues bound to other non-sugar substances called aglycones ( molecules with other sugars are polysaccharides ). Preliminary experiments deduce that the tongue 's taste receptors react to the glycosides and transduce the sweet taste sensation and the lingering bitter aftertaste by direct activation of sweet and bitter receptors. According to basic research, steviol glycosides and steviol interact with a protein channel called TRPM5, potentiating the signal from the sweet or bitter receptors, amplifying the taste of other sweet, bitter and umami tastants. The synergetic effect of the glycosides on the sweet receptor and TRPM5 explains the sweetness sensation. Some steviol glycosides ( rebaudioside A ) are perceived sweeter than others ( stevioside ). Steviol can not be further digested in the digestive tract and is taken up into the bloodstream, metabolised by the liver to steviol glucuronide, and excreted in the urine. Safety and Regulations A 2011 review found that the use of stevia sweeteners as replacements for sugar might benefit people with diabetes, children, and those wishing to lower their intake of calories. Although both steviol and rebaudioside A have been found to be mutagenic in laboratory in vitro testing, these effects have not been demonstrated for the doses and routes of administration to which humans are exposed. Two 2010 review studies found no health concerns with stevia or its sweetening extracts. The WHO 's Joint Experts Committee on Food Additives has approved, based on long - term studies, an acceptable daily intake of steviol glycoside of up to 4 mg / kg of body weight. In 2010, The European Food Safety Authority established an acceptable daily intake of 4 mg / kg / day of steviol, in the form of steviol glycosides. Meanwhile, the Memorial Sloan Kettering Cancer Center warns that `` steviol at high dosages may have weak mutagenic activity, '' and a review `` conducted for '' the Center for Science in the Public Interest notes that there are no published carcinogenicity results for rebaudioside A ( or stevioside ). Availability and legal status by country The plant may be grown legally in most countries, although some countries restrict its use as a sweetener. The legally allowed uses and maximum dosage of the extracts and derived products vary widely from country to country. Argentina : available as of 2008, regulatory status uncertain Australia and New Zealand : All steviol glycoside extracts were approved in 2008. Brazil : stevioside extract approved as food additive since 1986 Canada ( as of November 2012 ) Steviol glycosides became available as a food additive on 30 November 2012. Stevia rebaudiana leaf and extracts are available as dietary supplements. Chile : available as of 2008, regulatory status uncertain China : available since 1984, regulatory status uncertain Colombia : available as of 2008, regulatory status uncertain European Union : Steviol glycosides were approved and regulated as food additives by the European Commission on 11 November 2011. Hong Kong : steviol glycosides approved as food additives since January 2010 India : In a notification dated 13 Nov 2015 FSSAI has permitted its use in a range of products. This includes carbonated water, dairy - based desserts and flavoured drinks, yoghurts, ready - to - eat cereals, fruit nectars and jams. Madhu - Tulsi ( Sweeteners in Food Regulations ; Public Health and Municipal Services Ordinance ). Indonesia : ( 2012 ) Steviol glycosides are available as food additives since 2012. Stevia leaf is available as a dietary supplement. Israel : approved as food additive since January 2012. Japan : widely available since the 1970s and regulated as an existing additive since 1995. Korea : available as of 2008, regulatory status uncertain. Malaysia : available as of 2008, regulatory status uncertain. Mexico : mixed steviol glycoside extract ( not separate extracts ) approved since 2009. : Norway : Steviol glycoside approved as food additive ( E 960 ) since June 2012. The plant itself has not been approved as of September 2012. Stevia extract on sale in a supermarket in Paraguay Paraguay : available as of 2008, regulatory status uncertain. Peru : available as of 2008, regulatory status uncertain. Philippines : available as of 2008, regulatory status uncertain. Russian Federation : stevioside approved as food additive since 2008, in the `` minimal dosage required '' to achieve the goal. Saudi Arabia : available as of 2008, regulatory status uncertain. Singapore : steviol glycosides approved as food additive in certain foods, since 2005 Previously it was banned. South Africa : approved since September 2012 and widely available. Taiwan : available as of 2008, regulatory status uncertain. Thailand : available as of 2008, regulatory status uncertain. Turkey : available as of 2008, regulatory status uncertain. United Arab Emirates : available as of 2008, regulatory status uncertain. Uruguay : available as of 2008, regulatory status uncertain. United States ( as of April 2017 ) : Purified rebaudioside A has been allowed since December 2008 as a food additive ( sweetener ), sold under various trade names, and classified as `` generally recognized as safe '' ( `` GRAS '' ). Stevia rebaudiana leaf and extracts have been available as dietary supplements since 1995, but the 2008 FDA authorization does not extend to them, and they do not have GRAS status. Vietnam : available as of 2008, regulatory status uncertain. See also Asteraceae, botanical family containing Stevia Steviol glycoside, the chemical responsible for the sweetness Sugar substitute, primary usage of stevia Thaumatin, a natural sweetener, derived from an African fruit Miraculin, a substance that modifies the perception of sour foods into sweet References Jump up ^ `` Stevia ''. British & World English. Oxforddictionaries.com. 7 February 2013. Retrieved 13 February 2013. Jump up ^ `` Stevia ''. US English. Oxforddictionaries.com. 7 February 2013. 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Journal of Agricultural and Food Chemistry. 54 ( 7 ) : 2794 -- 8. doi : 10.1021 / jf052693e. PMID 16569078. ^ Jump up to : Goyal, S.K. ; Samsher ; Goyal, R.K. ( February 2010 ). `` Stevia ( Stevia rebaudiana ) a bio-sweetener : a review ''. Int J Food Sci Nutr. 61 ( 1 ) : 1 -- 10. doi : 10.3109 / 09637480903193049. PMID 19961353. ^ Jump up to : Kobylewski, Sarah ; Eckhert, Curtis. `` Toxicology of Rebaudioside A : A Review '' ( PDF ). Retrieved 19 August 2015. Jump up ^ Geuns JM ( 2003 ). `` Stevioside ''. Phytochemistry. 64 ( 5 ) : 913 -- 21. doi : 10.1016 / S0031 - 9422 ( 03 ) 00426 - 6. PMID 14561506. Jump up ^ Brusick DJ ( 2008 ). `` A critical review of the genetic toxicity of steviol and steviol glycosides ''. Food Chem Toxicol. 46 ( 7 ) : S83 -- S91. doi : 10.1016 / j. fct. 2008.05. 002. PMID 18556105. Jump up ^ Ulbricht, C. ; Isaac, R. ; Milkin, T. ; Poole, E.A. ; Rusie, E. ; et al. ( April 2010 ). `` An evidence - based systematic review of stevia by the Natural Standard Research Collaboration ''. Cardiovasc Hematol Agents Med Chem. 8 ( 2 ) : 113 -- 27. PMID 20370653. Jump up ^ `` Joint FAO / WHO Expert Committee on food additives, Sixty - ninth Meeting ''. World Health Organization. 4 July 2008. Jump up ^ `` Stevia ''. Memorial Sloan Kettering Cancer Center. Retrieved 19 August 2015. ^ Jump up to : `` Olam and Wilmar in 50 : 50 JV to Acquire 20 % Stake in PureCircle, a Leading Producer of Natural High - Intensity Sweeteners for USD 106.2 Mln ''. flex-news-food.com. 1 July 2008. Retrieved 5 April 2012. Jump up ^ `` Stevia gets Australian approval for food and beverages ''. Foodnavigator.com. Retrieved 13 February 2013. Jump up ^ `` Notice of Modification to the List of Permitted Sweeteners to Enable the Use of Steviol Glycosides as a Table - Top Sweetener and as a Sweetener in Certain Food Categories -- Document Reference Number NOM / ADM - 0002 ''. Health Canada. 2012. Jump up ^ `` Commission Regulation ( EU ) No 1131 / 2011 '' ( PDF ). Official Journal of the European Union : 205. 11 November 2011. Retrieved 15 November 2011. The CE regulation establishes steviol glycosides as food additive, and establishes maximum content levels in foodstuff and beverages. Jump up ^ Halliday, Jess ( 8 September 2009 ). `` France approves high Reb A stevia sweeteners ''. foodnavigator.com. Retrieved 23 January 2010. Jump up ^ `` Cap 132U Schedule ( Sweeteners in Food Regulations ; Public Health and Municipal Services Ordinance ) ``. legislation.gov.hk. 2011. Retrieved 22 June 2011. Jump up ^ `` Sweetener Stevia clears FSSAI hurdle Business Standard News ''. Business-standard.com. 2015 - 11 - 24. Retrieved 2016 - 09 - 22. Jump up ^ Indonesia 's Minister of Health ( 2012 ), Regulation of No. 033 on Food Additives Jump up ^ `` Stevia Sweeteners Now Approved in Israel ''. greenprophet.com. 2012. Retrieved 5 April 2012. 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Question: where does stevia in the raw come from
Answer: the leaves of the plant species Stevia rebaudiana; South America; the leaves of the plant species Stevia rebaudiana; the plant species Stevia rebaudiana