Editing Nutrient (section)

====Fatty acids====
{{Main|Essential fatty acid}}
Essential fatty acids (EFAs) are [[fatty acid]]s that humans and other animals must ingest because the body requires them for good health but cannot [[Biosynthesis|synthesize]] them.<ref>{{cite book | title = Modern Nutrition in Health and Disease | edition = 6th | year = 1980 | first1 = Robert S. | last1 = Goodhart | first2 = Maurice E. | last2 = Shils | name-list-style = vanc | publisher = Lea and Febinger | location = Philadelphia | isbn = 978-0-8121-0645-9 | pages = [https://archive.org/details/modernnutritionie6shil/page/134 134–138] | url = https://archive.org/details/modernnutritionie6shil/page/134 }}</ref> Only two fatty acids are known to be essential for humans: [[alpha-linolenic acid]] (an [[omega-3 fatty acid]]) and [[linoleic acid]] (an [[omega-6 fatty acid]]).<ref>{{cite book | vauthors = Ellie W, Rolfes SR | title = Understanding Nutrition | edition = 11th | location = California | publisher = Thomson Wadsworth | year = 2008 | pages = 154}}</ref>