Editing Tyrosine (section)

==Dietary requirements and sources==
The [[Dietary Reference Intake]] for tyrosine is usually estimated together with [[phenylalanine]]. It varies depending on an estimate method, however the ideal proportion of these two amino acids is considered to be 60:40 (phenylalanine:tyrosine) as a human body has such composition.<ref>{{cite journal | vauthors = Pencharz PB, Hsu JW, Ball RO | title = Aromatic amino acid requirements in healthy human subjects | journal = The Journal of Nutrition | volume = 137 | issue = 6 Suppl 1 | pages = 1576S-1578S; discussion 1597S-1598S | date = June 2007 | pmid = 17513429 | doi = 10.1093/jn/137.6.1576S | url = https://academic.oup.com/jn/article/137/6/1576S/4664888 | doi-access = free }}</ref>
Tyrosine, which can also be synthesized in the body from phenylalanine, is found in many high-[[protein]] food products such as [[meat]], [[Fish (food)|fish]], [[cheese]], [[cottage cheese]], [[milk]], [[yogurt]], [[peanut]]s, [[almond]]s, [[pumpkin seed]]s, [[sesame seed]]s, [[soy products|soy protein]] and [[lima bean]]s.<ref>Nutient Ranking Tool. MyFoodData.com. https://tools.myfooddata.com/nutrient-ranking-tool/tyrosine/all/highest</ref><ref>{{cite web|title=Tyrosine|url=http://www.umm.edu/altmed/articles/tyrosine-000329.htm|work=University of Maryland Medical Center|access-date=2011-03-17|archive-date=2013-06-04|archive-url=https://web.archive.org/web/20130604003052/http://www.umm.edu/altmed/articles/tyrosine-000329.htm|url-status=dead}}</ref> For example, the white of an egg has about 250&nbsp;mg per egg,<ref name="HF">[http://www.healthaliciousness.com/articles/high-tyrosine-foods.php Top 10 Foods Highest in Tyrosine]</ref> while beef, lamb, pork, tuna, salmon, chicken, and turkey contain about 500–1000&nbsp;mg per {{Convert|3|oz|g}} portion.<ref name="HF" /><ref>Nutient Ranking Tool. MyFoodData.com. https://tools.myfooddata.com https://tools.myfooddata.com/nutrient-ranking-tool/tyrosine/meats/highest/ounces/common/no</ref>