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Essential fatty acid

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429: 800:(AI) for omega−3 fatty acids is for ALA. It is based on the median intake, and for adults the values are 1.6 g/day for men and 1.1 g/day for women. EPA and DHA contribute about 10 percent of total omega−3 intake. The AI for omega−6 fatty acids is for linoleic acid and is also based on the median intake: 17 g/day for younger men, dropping to 14 g/day for men over 50 years old; for younger women 12 g/d, and 11 g/day for women over 50. Studies have shown that smaller intakes reverse the symptoms of deficiency, but there is inadequate information to set an 582:
lower blood levels of DHA than through direct ingestion. This is illustrated by studies in vegans and vegetarians. If there is relatively more LA than ALA in the diet it favors the formation of DPA from LA rather than DHA from ALA. This effect can be altered by changing the relative ratio of LA:ALA, but is more effective when total intake of polyunsaturated fatty acids is low.
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skin symptoms. This could be treated by infusing lipids, and later studies showed that topical application of sunflower oil would also resolve the dermal symptoms. Linoleic acid has a specific role in maintaining the skin water-permeability barrier, probably as constituents of acylglycosylceramides. This role cannot be met by any ω−3 fatty acids or by arachidonic acid.
405:, the minus symbol represents subtraction, indicating how many carbons away from the terminal end (ω) of the chain that the first unsaturated carbon-carbon bond appears. Typically, the number of carbons and the number of double bonds are also listed in short descriptions of unsaturated fatty acids. For instance, ω−3 18:4, or 18:4 ω−3, or 18:4 n−3 indicate 585:
In preterm infants, the capacity to convert LA to AA and ALA to DHA is limited, and preformed AA and DHA may be required to meet the needs of the developing brain. Both AA and DHA are present in breastmilk and contribute along with the parent fatty acids LA and ALA to meeting the requirements of the
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lists notable vegetable sources of EFAs as well as commentary and an overview of the biosynthetic pathways involved. However, these sources are not in perfect agreement. EFA content of vegetable sources varies with cultivation conditions. Animal sources vary widely, both with the animal's feed and
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in sufficient quantities for normal physiological function. This definition is met for LA and ALA but not the longer chain derivatives in adults. The longer chain derivatives particularly, however, have pharmacological properties that can modulate disease processes, but this should not be confused
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In humans, arachidonic acid (20:4n−6; AA) can be synthesized from LA. In turn, AA can be converted to an even longer fatty acid, the docosapentaenoic acid (22:5n−6; DPA). Similarly, ALA can be converted to docosahexaenoic acid (22:6n−3; DHA), although the latter conversion is limited, resulting in
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Fish is the main source of the longer omega−3 fats; eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), though they initially acquire these fats through the consumption of algae and seaweed. Some plant-based foods contain omega−3 in the form of alpha-linolenic acid (ALA), which appears to
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One study demonstrated linoleic acid deficiency in adults. They found that patients undergoing intravenous nutrition with glucose became isolated from their fat supplies and rapidly developed biochemical signs of essential fatty acid deficiency (an increase in 20:3n−9/20:4n−6 ratio in plasma) and
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or supplements derived from them are consumed) convert ALA to EPA and subsequently DHA. This elongation of ALA is inefficient. Conversion to DHA is higher in women than in men; this is thought to reflect the need to provide DHA to the fetus and infant during pregnancy and breast feeding.
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Essential fatty acids play an important role in the life and death of cardiac cells. Additionally, essential fatty acids are crucial for the development of several endocannabinoids with a multitude of functions in the body, such as docosahexaenoyl ethanolamide (DHA-EA/synaptamide).
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Reviews by the European Food Safety Authority made recommendations for minimal intakes of LA and ALA and have also recommended intakes of longer chain ω−3 fatty acids based on the association of oily fish consumption with a lower risk of cardiovascular disease.
393:) at the other end. They are almost always straight-chained. The carbon next to the carboxylate is known as α, the next carbon β, and so forth. Since biological fatty acids can be of diverse lengths, the last position is often labelled as " 254:, but the conversion amount is small, requiring intake from food or supplements. Deficiency in omega−3 fatty acids are very common. The average American has a dietry ratio between omega−6 fatty acids and omega−3 fatty acids of 20:1. 578:(18:3n−3; ALA) are essential for humans in the diet. However, humans can convert both LA and ALA to fatty acids with longer carbon chains and a larger number of double bonds, by alternative desaturation and chain elongation. 428: 687:, and there is evidence to suggest that low levels of essential fatty acids, or the wrong balance of types among the essential fatty acids, may be a factor in a number of illnesses, including 1587:"EFSA Scientific Opinion on Dietary Reference Values for fats, including saturated fatty acids, polyunsaturated fatty acids, monounsaturated fatty acids, trans fatty acids and cholesterol" 2130: 257:
When the two EFAs were discovered in 1923, they were designated "vitamin F", but in 1929, research on rats showed that the two EFAs are better classified as
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Mammals lack the ability to introduce double bonds in fatty acids beyond carbon 9 and 10, hence the omega−6 linoleic acid (18:2n−6; LA) and the omega−3
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Nugent KP, Spigelman AD, Phillips RK (June 1996). "Tissue prostaglandin levels in familial adenomatous polyposis patients treated with sulindac".
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In the body, essential fatty acids serve multiple functions. In each of these, the balance between dietary ω−3 and ω−6 strongly affects function.
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FAO/WHO Fats and fatty acids in human nutrition. Report of an expert consultation. FAO Food and Nutrition Paper 91, Rome 2011. ISSN 0254-4725
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Except for GLA, which has a short 18-carbon chain, these fatty acids have more than 18 carbon atoms and are typically classified as LC-PUFA.
1844: 1872: 246:). These are supplied to the body either as the free fatty acid, or more commonly as some glyceride derivative. ALA can be converted into 1478:"Correction of the cutaneous manifestations of essential fatty acid deficiency in man by application of sunflower-seed oil to the skin" 695:
have a modest benefit for cardiovascular health. The human body can (and in case of a purely vegetarian diet often must unless certain
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Collins FD, Sinclair AJ, Royle JP, Coats DA, Maynard AT, Leonard RF (1971). "Plasma lipids in human linoleic acid deficiency".
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They form the starting point for the creation of more desaturated fatty acids, most of which also have a longer carbon chain:
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newborn infant. Many infant formulas have AA and DHA added to them with an aim to make them more equivalent to human milk.
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The main physiological requirement for ω−6 fatty acids is attributed to arachidonic acid, which is the major precursor of
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provides a very large and detailed listing of fat contents of animal and vegetable fats, including ω−3 and −6 oils. The
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he turnover of essential fatty acids is increased (7). Arachidonic acid is one of the essential fatty acids affected.
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Kruger MC, Horrobin DF (September 1997). "Calcium metabolism, osteoporosis and essential fatty acids: a review".
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For the biological effects of the ω−3 and ω−6 fatty acids which are mediated by their mutual interactions, see
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and for the maintenance and function of tissues and organs. These fatty acids also are precursors to vitamins,
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Reference intake values for as published by the Panel on Dietetic Products, Nutrition and Allergies of the
941: 545: 423:) group unless otherwise noted. In free fatty acid form, the chemical structure of stearidonic acid is: 2349: 2344: 440: 566:
are not essential in humans because they can be synthesized from carbohydrates or other fatty acids.
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James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2019-01-18).
1916: 1257:"n-3 fatty acids, inflammation, and immunity--relevance to postsurgical and critically ill patients" 2583: 1666:"Pathological regulation of arachidonic acid release in cystic fibrosis: the putative basic defect" 801: 797: 333: 309:
which are a group of eicosanoid derivatives formed via the lipoxygenase pathway from ω−6 EFAs and
2184: 216: 141: 1812:"Conversion of alpha-linolenic acid to longer-chain polyunsaturated fatty acids in human adults" 1811: 1861: 729: 2155: 972: 965: 894: 879: 519: 247: 1763:"α-Linolenic acid and risk of cardiovascular disease: a systematic review and meta-analysis" 616:. Metabolites from the ω−3 pathway, mainly from eicosapentaenoic acid, are mostly inactive. 2578: 2299: 1949: 1677: 869: 764: 575: 539: 525: 472: 251: 200: 299: 8: 1215: 1123:
Das, Undurti N. (2006). "Essential Fatty Acids: Biochemistry, Physiology and Pathology".
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Reiffel JA, McDonald A (August 2006). "Antiarrhythmic effects of omega-3 fatty acids".
1787: 1762: 1643: 1519:"The endocannabinoid system, anandamide and the regulation of mammalian cell apoptosis" 1333: 1308: 1281: 1256: 1148: 1056: 1031: 909: 904: 563: 533: 513: 480: 466: 243: 239: 208: 160: 101: 96: 91: 86: 1739: 1700: 1665: 1199: 1182: 2161: 2111: 2070: 2043: 2012: 1977: 1972: 1937: 1836: 1792: 1743: 1705: 1635: 1565: 1540: 1499: 1458: 1414: 1379: 1338: 1286: 1237: 1140: 1102: 1061: 1003: 976: 824: 715:. This lists 40 common oils, more tightly focused on EFAs and sorted by n−6:3 ratio. 212: 129: 1647: 1152: 369: 238:
Only two fatty acids are known to be essential for humans: alpha-linolenic acid (an
2417: 2101: 2004: 1967: 1957: 1826: 1782: 1774: 1735: 1695: 1685: 1627: 1598: 1530: 1489: 1450: 1406: 1369: 1328: 1320: 1276: 1268: 1227: 1194: 1132: 1092: 1051: 1043: 944:. Office of Dietary Supplements, US National Institutes of Health. 15 February 2023 661: 551: 406: 2008: 1309:"Selection in Europeans on Fatty Acid Desaturases Associated with Dietary Changes" 2495: 2339: 2292: 1923: 1559: 1494: 1477: 820: 673: 669: 48: 1889: 1410: 2634: 2485: 2207: 2090:"Labelling reference intake values for n-3 and n-6 polyunsaturated fatty acids" 1942:
Proceedings of the National Academy of Sciences of the United States of America
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Proceedings of the National Academy of Sciences of the United States of America
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from ω−3 (in the presence of acetylsalicylic acid, downregulating inflammation)
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that the EFA makeup varies markedly with fats from different body parts.
653: 378: 325: 228: 224: 199:.⁠ As they are not synthesized in the body, the essential fatty acids – 113: 612:
that play a vital role in cell signaling, and an endogenous cannabinoid
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They act on DNA (activating or inhibiting transcription factors such as
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Honoré E, Barhanin J, Attali B, Lesage F, Lazdunski M (March 1994).
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Both the essential fatty acids are SC-PUFA with an 18-carbon chain:
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Stillwell W, Shaikh SR, Zerouga M, Siddiqui R, Wassall SR (2005).
1183:"On the nature and role of the fatty acids essential in nutrition" 962: 352: 2621: 2543: 2268: 2263: 2176: 1663: 1081:"Deficiencies of essential and conditionally essential nutrients" 503: 306: 262: 232: 2233: 677: 1213: 2316: 2273: 2253: 1664:
Carlstedt-Duke J, Brönnegård M, Strandvik B (December 1986).
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Vaughan JG, Geissler C, Nicholson B, Dowle E, Rice E (2009).
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with 16- and 18-carbon chains are sometimes classified as
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Pan A, Chen M, Chowdhury R, et al. (December 2012).
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that are required by humans and other animals for normal
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Some of the food sources of ω−3 and ω−6 fatty acids are
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Chipponi JX, Bleier JC, Santi MT, Rudman D (May 1982).
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European Food Safety Authority (EFSA) (2009-07-01).
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Andrews' Diseases of the Skin: Clinical Dermatology
1475: 989: 964: 807: 1917:Vegetable Lipids as Components of Functional Food 1517:Maccarrone, M; Finazzi-Agró, A (22 August 2003). 1399:Prostaglandins Leukotrienes Essential Fatty Acids 717:Vegetable Lipids as Components of Functional Food 2657: 1760: 1397:Sanders TA (2009). "DHA Status of vegetarians". 1002:. Oxford University Press US. pp. 212–235. 592:are defined as those that cannot be synthesized 1994: 363: 1725: 1029: 2300: 2192: 963:Robert S. Goodhart; Maurice E. Shils (1980). 569: 161: 16:Fatty acids required for biological processes 1809: 1652:Arachidonic acid is an essential fatty acid… 1557: 2029: 302:(affecting mood, behavior and inflammation) 2307: 2293: 2199: 2185: 1362:The American Journal of Clinical Nutrition 1355: 1085:The American Journal of Clinical Nutrition 1030:Kaur N, Chugh V, Gupta AK (October 2014). 738: 683:Essential fatty acids play a part in many 168: 154: 2160:. Elsevier Health Sciences. p. 482. 2105: 2060: 1971: 1961: 1830: 1786: 1699: 1689: 1657: 1602: 1534: 1493: 1476:Prottey, C; Hartop, PJ; Press, M (1975). 1373: 1332: 1280: 1254: 1231: 1207: 1198: 1096: 1055: 459:), which have more than 18 carbon atoms. 1180: 385:(–COOH) at one end, and terminated by a 2147: 1810:Burdge GC, Calder PC (September 2005). 1396: 1306: 1302: 1300: 1248: 445:short chain polyunsaturated fatty acids 419:and separated by a single methylene (CH 207:– must be obtained from food or from a 2658: 2036:Tidsskrift for den Norske Lægeforening 1611: 1036:Journal of Food Science and Technology 967:Modern Nutrition in Health and Disease 453:long-chain polyunsaturated fatty acids 355:, which is linked to pro-inflammatory 2288: 2180: 1584: 1118: 1116: 936: 934: 932: 930: 2030:Landmark K, Alm CS (November 2006). 1297: 1220:Reproduction, Nutrition, Development 2314: 1558:Sanders, Tom; Emery, Peter (2003). 1174: 1122: 1072: 1023: 13: 2206: 2136:. pp. 422–514. Archived from 1997:The American Journal of Cardiology 1561:Molecular Basis of Human Nutrition 1113: 999:The new Oxford book of food plants 927: 865:Specialized proresolving mediators 499:by humans because humans lack the 295:and many other cellular functions) 14: 2677: 2129:Food and Nutrition Board (2004). 1166:Whitney Ellie; Rolfes SR (2008). 875:Essential fatty acid interactions 711:'s EFA Education group publishes 275:Essential fatty acid interactions 2061:Herbaut C (September 2006). "". 1906:from the original on 2014-12-10. 1878:from the original on 2006-02-12. 1850:from the original on 2017-08-15. 1620:Diseases of the Colon and Rectum 1523:Cell Death & Differentiation 1307:Buckley MT, et al. (2017). 495:These two fatty acids cannot be 427: 2122: 2081: 2054: 2023: 1988: 1929: 1910: 1882: 1854: 1803: 1754: 1719: 1578: 1551: 1510: 1469: 1434: 1425: 1390: 1356:Simopoulos, Artemis P. (1999). 1349: 1181:Burr GO, Burr MM (April 1930). 813:Essential fatty acid deficiency 808:Essential fatty acid deficiency 723: 623: 506:required for their production. 2594:Dipalmitoylphosphatidylcholine 2259:"Minerals" (Chemical elements) 1159: 956: 745:European Food Safety Authority 370:Fatty acid § Nomenclature 348:(affecting cellular signaling) 1: 2009:10.1016/j.amjcard.2005.12.027 1890:"Essential Fats in Food Oils" 1740:10.1016/S0163-7827(97)00007-6 1200:10.1016/S0021-9258(20)78929-5 921: 802:Estimated Average Requirement 709:National Institutes of Health 219:, and derivatives, including 1495:10.1111/1523-1747.ep12510667 843:Hydroxyeicosatetraenoic acid 364:Nomenclature and terminology 268: 7: 2063:Revue Médicale de Bruxelles 1411:10.1016/j.plefa.2009.05.013 1255:Calder PC (December 2004). 830: 713:Essential Fats in Food Oils 597:with dietary essentiality. 546:dihomo-gamma-linolenic acid 441:Polyunsaturated fatty acids 435: 10: 2682: 2350:Polyunsaturated fatty acid 2345:Monounsaturated fatty acid 1728:Progress in Lipid Research 1564:. London: Taylor Frances. 796:In the United States, the 727: 570:Essentiality in human diet 397:", the last letter in the 367: 284:They are modified to make 272: 18: 2620: 2602: 2584:Phosphatidyl ethanolamine 2564: 2504: 2446: 2408: 2377: 2323: 2214: 1273:10.1007/s11745-004-1342-z 1048:10.1007/s13197-012-0677-0 334:epoxyeicosatrienoic acids 2107:10.2903/j.efsa.2009.1176 1604:10.2903/j.efsa.2010.1461 819:similar to that seen in 759:Reference intake values 374:Fatty acids comprise an 242:) and linoleic acid (an 19:Not to be confused with 1779:10.3945/ajcn.112.044040 1691:10.1073/pnas.83.23.9202 1168:Understanding Nutrition 739:Reference intake values 197:synthesized in the body 142:Fat interesterification 1963:10.1073/pnas.91.5.1937 1862:"IUPAC Lipid Handbook" 1536:10.1038/sj.cdd.4401284 1375:10.1093/ajcn/70.3.560s 1137:10.1002/biot.200600012 1098:10.1093/ajcn/35.5.1112 730:Diet and heart disease 413:end. Double bonds are 193:physiological function 2666:Essential fatty acids 2239:Essential fatty acids 1769:(Systematic review). 1325:10.1093/molbev/msx103 1125:Biotechnology Journal 942:"Omega-3 Fatty Acids" 895:Nonclassic eicosanoid 880:Fatty acid metabolism 658:canola (rapeseed) oil 520:eicosapentaenoic acid 248:eicosapentaenoic acid 181:Essential fatty acids 2579:Phosphatidylinositol 2355:Essential fatty acid 870:Essential amino acid 705:IUPAC Lipid Handbook 576:alpha-linolenic acid 540:gamma-linolenic acid 526:docosahexaenoic acid 401:. In the expression 252:docosahexaenoic acid 201:alpha-linolenic acid 81:Essential fatty acid 1954:1994PNAS...91.1937H 1832:10.1051/rnd:2005047 1682:1986PNAS...83.9202C 1233:10.1051/rnd:2005046 1091:(5 Suppl): 1112–6. 915:Polyunsaturated fat 885:Fatty acid synthase 685:metabolic processes 590:Essential nutrients 213:metabolic processes 59:Polyunsaturated fat 54:Monounsaturated fat 2574:Phosphatidylserine 2400:Omega−9 fatty acid 2395:Omega−6 fatty acid 2390:Omega−3 fatty acid 1926:, Stuchlik and Zak 1922:2006-03-20 at the 1767:Am. J. Clin. Nutr. 1632:10.1007/BF02056946 910:Omega−6 fatty acid 905:Omega−3 fatty acid 804:(EAR) for either. 244:omega−6 fatty acid 240:omega−3 fatty acid 209:dietary supplement 2653: 2652: 2282: 2281: 1819:Reprod. Nutr. Dev 1585:Jones, A (2010). 1482:J Invest Dermatol 1455:10.1159/000175332 1009:978-0-19-954946-7 982:978-0-8121-0645-9 825:biotin deficiency 794: 793: 548:or DGLA (20:3n−6) 451:), as opposed to 178: 177: 130:Fat hydrogenation 122:Manufactured fats 2673: 2418:Arachidonic acid 2309: 2302: 2295: 2286: 2285: 2201: 2194: 2187: 2178: 2177: 2172: 2171: 2151: 2145: 2144: 2142: 2135: 2126: 2120: 2119: 2109: 2085: 2079: 2078: 2058: 2052: 2051: 2038:(in Norwegian). 2027: 2021: 2020: 1992: 1986: 1985: 1975: 1965: 1933: 1927: 1914: 1908: 1907: 1905: 1897:efaeducation.org 1894: 1886: 1880: 1879: 1877: 1866: 1858: 1852: 1851: 1849: 1834: 1816: 1807: 1801: 1800: 1790: 1758: 1752: 1751: 1723: 1717: 1716: 1703: 1693: 1661: 1655: 1654: 1615: 1609: 1608: 1606: 1582: 1576: 1575: 1555: 1549: 1548: 1538: 1514: 1508: 1507: 1497: 1473: 1467: 1466: 1438: 1432: 1429: 1423: 1422: 1394: 1388: 1387: 1377: 1368:(3): 560s–569s. 1353: 1347: 1346: 1336: 1319:(6): 1307–1318. 1304: 1295: 1294: 1284: 1252: 1246: 1245: 1235: 1211: 1205: 1204: 1202: 1178: 1172: 1171: 1163: 1157: 1156: 1120: 1111: 1110: 1100: 1076: 1070: 1069: 1059: 1042:(10): 2289–303. 1027: 1021: 1020: 1018: 1016: 993: 987: 986: 970: 960: 954: 953: 951: 949: 938: 750: 749: 674:leafy vegetables 552:arachidonic acid 542:or GLA (18:3n−6) 528:or DHA (22:6n−3) 522:or EPA (20:5n−3) 475:or ALA (18:3n−3) 473:α-linolenic acid 431: 407:stearidonic acid 338:neuroprotectin D 300:endocannabinoids 170: 163: 156: 26: 25: 2681: 2680: 2676: 2675: 2674: 2672: 2671: 2670: 2656: 2655: 2654: 2649: 2635:Corticosteroids 2616: 2598: 2560: 2500: 2496:Lignoceric acid 2442: 2404: 2373: 2340:Unsaturated fat 2319: 2313: 2283: 2278: 2210: 2205: 2175: 2168: 2152: 2148: 2140: 2133: 2127: 2123: 2086: 2082: 2059: 2055: 2028: 2024: 2003:(4A): 50i–60i. 1993: 1989: 1934: 1930: 1924:Wayback Machine 1915: 1911: 1903: 1892: 1888: 1887: 1883: 1875: 1864: 1860: 1859: 1855: 1847: 1814: 1808: 1804: 1759: 1755: 1734:(2–3): 131–51. 1724: 1720: 1662: 1658: 1616: 1612: 1583: 1579: 1572: 1556: 1552: 1515: 1511: 1474: 1470: 1439: 1435: 1430: 1426: 1405:(2–3): 137–41. 1395: 1391: 1354: 1350: 1305: 1298: 1267:(12): 1147–61. 1253: 1249: 1212: 1208: 1179: 1175: 1164: 1160: 1121: 1114: 1077: 1073: 1028: 1024: 1014: 1012: 1010: 994: 990: 983: 961: 957: 947: 945: 940: 939: 928: 924: 919: 833: 810: 798:Adequate Intake 768:-Linolenic acid 741: 732: 726: 670:sunflower seeds 636:, seaweed oil, 626: 572: 564:ω−9 fatty acids 554:or AA (20:4n−6) 534:ω−6 fatty acids 514:ω−3 fatty acids 489:or LA (18:2n−6) 438: 422: 412: 392: 372: 366: 278: 271: 195:that cannot be 174: 49:Unsaturated fat 24: 17: 12: 11: 5: 2679: 2669: 2668: 2651: 2650: 2648: 2647: 2642: 2637: 2632: 2626: 2624: 2618: 2617: 2615: 2614: 2608: 2606: 2600: 2599: 2597: 2596: 2591: 2586: 2581: 2576: 2570: 2568: 2562: 2561: 2559: 2558: 2557: 2556: 2551: 2546: 2541: 2536: 2531: 2521: 2516: 2510: 2508: 2502: 2501: 2499: 2498: 2493: 2488: 2486:Arachidic acid 2483: 2478: 2473: 2468: 2463: 2458: 2452: 2450: 2444: 2443: 2441: 2440: 2435: 2430: 2425: 2423:Prostaglandins 2420: 2414: 2412: 2406: 2405: 2403: 2402: 2397: 2392: 2387: 2381: 2379: 2375: 2374: 2372: 2371: 2366: 2357: 2352: 2347: 2342: 2337: 2327: 2325: 2321: 2320: 2312: 2311: 2304: 2297: 2289: 2280: 2279: 2277: 2276: 2271: 2266: 2261: 2256: 2251: 2246: 2241: 2236: 2231: 2226: 2221: 2215: 2212: 2211: 2208:Food chemistry 2204: 2203: 2196: 2189: 2181: 2174: 2173: 2166: 2146: 2143:on 2022-06-27. 2121: 2080: 2069:(4): S355–60. 2053: 2042:(21): 2792–4. 2022: 1987: 1948:(5): 1937–41. 1928: 1909: 1881: 1853: 1802: 1773:(6): 1262–73. 1753: 1718: 1676:(23): 9202–6. 1656: 1610: 1577: 1570: 1550: 1529:(9): 946–955. 1509: 1468: 1433: 1424: 1389: 1348: 1296: 1247: 1206: 1193:(2): 587–621. 1173: 1158: 1131:(4): 420–439. 1112: 1071: 1022: 1008: 988: 981: 955: 925: 923: 920: 918: 917: 912: 907: 902: 897: 892: 887: 882: 877: 872: 867: 862: 861: 860: 855: 850: 845: 834: 832: 829: 809: 806: 792: 791: 788: 785: 778: 777: 774: 771: 761: 760: 757: 754: 740: 737: 728:Main article: 725: 722: 640:(linseed) and 625: 622: 606:prostaglandins 571: 568: 558: 557: 556: 555: 549: 543: 531: 530: 529: 523: 493: 492: 491: 490: 481:ω−6 fatty acid 478: 477: 476: 467:ω−3 fatty acid 437: 434: 433: 432: 420: 410: 399:Greek alphabet 390: 383:carboxyl group 368:Main article: 365: 362: 361: 360: 349: 342: 341: 340: 314: 303: 296: 270: 267: 235:, and others. 221:prostaglandins 176: 175: 173: 172: 165: 158: 150: 147: 146: 145: 144: 139: 138: 137: 124: 123: 119: 118: 117: 116: 111: 106: 105: 104: 99: 94: 89: 71: 70: 66: 65: 64: 63: 62: 61: 56: 46: 38: 37: 15: 9: 6: 4: 3: 2: 2678: 2667: 2664: 2663: 2661: 2646: 2643: 2641: 2638: 2636: 2633: 2631: 2628: 2627: 2625: 2623: 2619: 2613: 2610: 2609: 2607: 2605: 2604:Sphingolipids 2601: 2595: 2592: 2590: 2587: 2585: 2582: 2580: 2577: 2575: 2572: 2571: 2569: 2567: 2566:Phospholipids 2563: 2555: 2552: 2550: 2547: 2545: 2542: 2540: 2537: 2535: 2532: 2530: 2527: 2526: 2525: 2522: 2520: 2517: 2515: 2514:Monoglyceride 2512: 2511: 2509: 2507: 2503: 2497: 2494: 2492: 2489: 2487: 2484: 2482: 2479: 2477: 2476:Palmitic acid 2474: 2472: 2471:Myristic acid 2469: 2467: 2464: 2462: 2459: 2457: 2456:Caprylic acid 2454: 2453: 2451: 2449: 2445: 2439: 2436: 2434: 2431: 2429: 2426: 2424: 2421: 2419: 2416: 2415: 2413: 2411: 2407: 2401: 2398: 2396: 2393: 2391: 2388: 2386: 2383: 2382: 2380: 2376: 2370: 2367: 2365: 2361: 2358: 2356: 2353: 2351: 2348: 2346: 2343: 2341: 2338: 2336: 2335:Saturated fat 2332: 2329: 2328: 2326: 2322: 2318: 2310: 2305: 2303: 2298: 2296: 2291: 2290: 2287: 2275: 2272: 2270: 2267: 2265: 2262: 2260: 2257: 2255: 2252: 2250: 2249:Fortification 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2224:Carbohydrates 2222: 2220: 2217: 2216: 2213: 2209: 2202: 2197: 2195: 2190: 2188: 2183: 2182: 2179: 2169: 2167:9780323551885 2163: 2159: 2158: 2150: 2139: 2132: 2125: 2117: 2113: 2108: 2103: 2099: 2095: 2091: 2084: 2076: 2072: 2068: 2065:(in French). 2064: 2057: 2049: 2045: 2041: 2037: 2033: 2026: 2018: 2014: 2010: 2006: 2002: 1998: 1991: 1983: 1979: 1974: 1969: 1964: 1959: 1955: 1951: 1947: 1943: 1939: 1932: 1925: 1921: 1918: 1913: 1902: 1898: 1891: 1885: 1874: 1870: 1863: 1857: 1846: 1842: 1838: 1833: 1828: 1825:(5): 581–97. 1824: 1820: 1813: 1806: 1798: 1794: 1789: 1784: 1780: 1776: 1772: 1768: 1764: 1757: 1749: 1745: 1741: 1737: 1733: 1729: 1722: 1715: 1711: 1707: 1702: 1697: 1692: 1687: 1683: 1679: 1675: 1671: 1667: 1660: 1653: 1649: 1645: 1641: 1637: 1633: 1629: 1626:(6): 659–62. 1625: 1621: 1614: 1605: 1600: 1596: 1592: 1588: 1581: 1573: 1571:9780367806323 1567: 1563: 1562: 1554: 1546: 1542: 1537: 1532: 1528: 1524: 1520: 1513: 1505: 1501: 1496: 1491: 1488:(4): 228–34. 1487: 1483: 1479: 1472: 1464: 1460: 1456: 1452: 1449:(3): 150–67. 1448: 1444: 1437: 1428: 1420: 1416: 1412: 1408: 1404: 1400: 1393: 1385: 1381: 1376: 1371: 1367: 1363: 1359: 1352: 1344: 1340: 1335: 1330: 1326: 1322: 1318: 1314: 1313:Mol Biol Evol 1310: 1303: 1301: 1292: 1288: 1283: 1278: 1274: 1270: 1266: 1262: 1258: 1251: 1243: 1239: 1234: 1229: 1226:(5): 559–79. 1225: 1221: 1217: 1210: 1201: 1196: 1192: 1188: 1187:J. Biol. Chem 1184: 1177: 1169: 1162: 1154: 1150: 1146: 1142: 1138: 1134: 1130: 1126: 1119: 1117: 1108: 1104: 1099: 1094: 1090: 1086: 1082: 1075: 1067: 1063: 1058: 1053: 1049: 1045: 1041: 1037: 1033: 1026: 1011: 1005: 1001: 1000: 992: 984: 978: 974: 969: 968: 959: 943: 937: 935: 933: 931: 926: 916: 913: 911: 908: 906: 903: 901: 898: 896: 893: 891: 888: 886: 883: 881: 878: 876: 873: 871: 868: 866: 863: 859: 856: 854: 853:Prostaglandin 851: 849: 846: 844: 841: 840: 839: 836: 835: 828: 826: 822: 818: 815:results in a 814: 805: 803: 799: 789: 786: 783: 782:Linoleic acid 780: 779: 775: 772: 769: 767: 763: 762: 758: 755: 752: 751: 748: 746: 736: 731: 721: 718: 714: 710: 706: 701: 698: 692: 690: 686: 681: 679: 675: 671: 667: 666:pumpkin seeds 663: 659: 655: 651: 647: 643: 639: 635: 631: 621: 617: 615: 611: 607: 602: 598: 595: 591: 587: 583: 579: 577: 567: 565: 561: 553: 550: 547: 544: 541: 538: 537: 535: 532: 527: 524: 521: 518: 517: 515: 512: 511: 510: 507: 505: 502: 498: 488: 487:linoleic acid 485: 484: 482: 479: 474: 471: 470: 468: 465: 464: 463: 460: 458: 454: 450: 446: 442: 430: 426: 425: 424: 418: 417: 408: 404: 400: 396: 388: 384: 381:chain plus a 380: 377: 371: 358: 354: 350: 347: 343: 339: 335: 331: 327: 323: 319: 315: 312: 308: 304: 301: 297: 294: 290: 286: 285: 283: 282: 281: 276: 266: 264: 260: 255: 253: 249: 245: 241: 236: 234: 230: 226: 222: 218: 214: 210: 206: 205:linoleic acid 202: 198: 194: 190: 186: 182: 171: 166: 164: 159: 157: 152: 151: 149: 148: 143: 140: 136: 133: 132: 131: 128: 127: 126: 125: 121: 120: 115: 112: 110: 107: 103: 100: 98: 95: 93: 90: 88: 85: 84: 82: 78: 75: 74: 73: 72: 68: 67: 60: 57: 55: 52: 51: 50: 47: 45: 44:Saturated fat 42: 41: 40: 39: 36: 32: 28: 27: 22: 21:essential oil 2645:Secosteroids 2640:Sex steroids 2529:Triheptanoin 2524:Triglyceride 2491:Behenic acid 2481:Stearic acid 2438:Leukotrienes 2428:Prostacyclin 2359: 2354: 2330: 2238: 2156: 2149: 2138:the original 2124: 2097: 2094:EFSA Journal 2093: 2083: 2066: 2062: 2056: 2039: 2035: 2025: 2000: 1996: 1990: 1945: 1941: 1931: 1912: 1896: 1884: 1868: 1856: 1822: 1818: 1805: 1770: 1766: 1756: 1731: 1727: 1721: 1713: 1673: 1669: 1659: 1651: 1623: 1619: 1613: 1594: 1591:EFSA Journal 1590: 1580: 1560: 1553: 1526: 1522: 1512: 1485: 1481: 1471: 1446: 1442: 1436: 1427: 1402: 1398: 1392: 1365: 1361: 1351: 1316: 1312: 1264: 1260: 1250: 1223: 1219: 1209: 1190: 1186: 1176: 1167: 1161: 1128: 1124: 1088: 1084: 1074: 1039: 1035: 1025: 1013:. Retrieved 998: 991: 966: 958: 946:. Retrieved 812: 811: 795: 765: 753:Common name 742: 733: 724:Human health 716: 712: 704: 702: 693: 689:osteoporosis 682: 642:flaxseed oil 627: 624:Food sources 618: 610:leukotrienes 603: 599: 593: 589: 588: 584: 580: 573: 562: 559: 508: 494: 461: 456: 452: 448: 444: 439: 415: 402: 387:methyl group 373: 326:isoprostanes 293:inflammation 287:the classic 279: 261:rather than 256: 237: 229:thromboxanes 225:leukotrienes 184: 180: 179: 109:Triglyceride 80: 2630:Cholesterol 2589:Cardiolipin 2549:Trilinolein 2539:Tripalmitin 2534:Trimyristin 2519:Diglyceride 2466:Lauric acid 2461:Capric acid 2448:Fatty acids 2433:Thromboxane 2410:Eicosanoids 2100:(7): 1176. 1597:(3): 1461. 858:Thromboxane 848:Leukotriene 497:synthesized 379:hydrocarbon 359:production) 346:lipid rafts 336:(EETs) and 322:neurofurans 291:(affecting 289:eicosanoids 189:fatty acids 114:Cholesterol 2544:Tristearin 2506:Glycerides 2331:Saturation 1443:Nutr Metab 1015:13 October 922:References 838:Eicosanoid 817:dermatitis 662:chia seeds 614:anandamide 501:desaturase 344:They form 330:hepoxilins 203:(ALA) and 77:Fatty acid 69:Components 2385:Trans fat 2315:Types of 2219:Additives 2116:1831-4732 1869:iupac.org 900:Oily fish 890:Krill oil 650:olive oil 646:hemp seed 634:shellfish 376:aliphatic 318:isofurans 311:resolvins 269:Functions 217:cofactors 135:Trans fat 29:Types of 2660:Category 2622:Steroids 2612:Ceramide 2554:Triolein 2378:Geometry 2269:Vitamins 2264:Proteins 2229:Coloring 2075:17091903 2048:17086218 2017:16919517 1920:Archived 1901:Archived 1873:Archived 1845:Archived 1841:16188209 1797:23076616 1648:25642190 1545:12934069 1419:19500961 1384:10479232 1343:28333262 1291:15736910 1242:16188208 1153:25945627 1145:16892270 1066:25328170 831:See also 787:Omega−6 773:Omega−3 747:(EFSA). 654:soya oil 638:flaxseed 436:Examples 357:cytokine 307:lipoxins 263:vitamins 233:lipoxins 2324:General 2244:Flavors 2234:Enzymes 1982:8127910 1950:Bibcode 1788:3497923 1748:9624425 1710:3097647 1678:Bibcode 1640:8646953 1504:1117180 1463:5001758 1334:5435082 1282:7101959 1107:6805293 1057:4190204 973:134–138 948:22 July 678:walnuts 594:de novo 504:enzymes 457:LC-PUFA 449:SC-PUFA 102:Omega−9 97:Omega−7 92:Omega−6 87:Omega−3 2317:lipids 2254:Lipids 2164:  2114:  2073:  2046:  2015:  1980:  1970:  1839:  1795:  1785:  1746:  1708:  1701:387103 1698:  1646:  1638:  1568:  1543:  1502:  1461:  1417:  1382:  1341:  1331:  1289:  1279:  1261:Lipids 1240:  1151:  1143:  1105:  1064:  1054:  1006:  979:  770:(ALA) 676:, and 187:, are 2360:Other 2274:Water 2141:(PDF) 2134:(PDF) 1973:43279 1904:(PDF) 1893:(PDF) 1876:(PDF) 1865:(PDF) 1848:(PDF) 1815:(PDF) 1644:S2CID 1149:S2CID 790:10 g 784:(LA) 766:alpha 756:Type 697:algae 353:NF-κB 183:, or 2162:ISBN 2112:ISSN 2071:PMID 2044:PMID 2013:PMID 1978:PMID 1837:PMID 1793:PMID 1744:PMID 1706:PMID 1636:PMID 1566:ISBN 1541:PMID 1500:PMID 1459:PMID 1415:PMID 1380:PMID 1339:PMID 1287:PMID 1238:PMID 1141:PMID 1103:PMID 1062:PMID 1017:2010 1004:ISBN 977:ISBN 950:2024 821:zinc 776:2 g 703:The 632:and 630:fish 389:(–CH 316:the 305:the 298:the 259:fats 250:and 185:EFAs 35:food 31:fats 2369:Oil 2364:Fat 2102:doi 2040:126 2005:doi 1968:PMC 1958:doi 1827:doi 1783:PMC 1775:doi 1736:doi 1696:PMC 1686:doi 1628:doi 1599:doi 1531:doi 1490:doi 1451:doi 1407:doi 1370:doi 1329:PMC 1321:doi 1277:PMC 1269:doi 1228:doi 1195:doi 1133:doi 1093:doi 1052:PMC 1044:doi 823:or 416:cis 403:ω−x 265:. 33:in 2662:: 2362:: 2333:: 2110:. 2096:. 2092:. 2067:27 2034:. 2011:. 2001:98 1999:. 1976:. 1966:. 1956:. 1946:91 1944:. 1940:. 1899:. 1895:. 1871:. 1867:. 1843:. 1835:. 1823:45 1821:. 1817:. 1791:. 1781:. 1771:96 1765:. 1742:. 1732:36 1730:. 1712:. 1704:. 1694:. 1684:. 1674:83 1672:. 1668:. 1650:. 1642:. 1634:. 1624:39 1622:. 1593:. 1589:. 1539:. 1527:10 1525:. 1521:. 1498:. 1486:64 1484:. 1480:. 1457:. 1447:13 1445:. 1413:. 1403:81 1401:. 1378:. 1366:70 1364:. 1360:. 1337:. 1327:. 1317:34 1315:. 1311:. 1299:^ 1285:. 1275:. 1265:39 1263:. 1259:. 1236:. 1224:45 1222:. 1218:. 1191:86 1189:. 1185:. 1147:. 1139:. 1127:. 1115:^ 1101:. 1089:35 1087:. 1083:. 1060:. 1050:. 1040:51 1038:. 1034:. 975:. 929:^ 827:. 691:. 680:. 672:, 668:, 664:, 660:, 656:, 652:, 648:, 644:, 608:, 536:: 516:: 483:: 469:: 332:, 328:, 324:, 320:, 231:, 227:, 223:, 83:) 2308:e 2301:t 2294:v 2200:e 2193:t 2186:v 2170:. 2118:. 2104:: 2098:7 2077:. 2050:. 2019:. 2007:: 1984:. 1960:: 1952:: 1829:: 1799:. 1777:: 1750:. 1738:: 1688:: 1680:: 1630:: 1607:. 1601:: 1595:8 1574:. 1547:. 1533:: 1506:. 1492:: 1465:. 1453:: 1421:. 1409:: 1386:. 1372:: 1345:. 1323:: 1293:. 1271:: 1244:. 1230:: 1203:. 1197:: 1155:. 1135:: 1129:1 1109:. 1095:: 1068:. 1046:: 1019:. 985:. 952:. 455:( 447:( 421:2 411:3 395:ω 391:3 277:. 169:e 162:t 155:v 79:( 23:.

Index

essential oil
fats
food
Saturated fat
Unsaturated fat
Monounsaturated fat
Polyunsaturated fat
Fatty acid
Essential fatty acid
Omega−3
Omega−6
Omega−7
Omega−9
Triglyceride
Cholesterol
Fat hydrogenation
Trans fat
Fat interesterification
v
t
e
fatty acids
physiological function
synthesized in the body
alpha-linolenic acid
linoleic acid
dietary supplement
metabolic processes
cofactors
prostaglandins

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