Editing Fatty acid (section)

===Distribution===
{{Main|Blood fatty acids}}
Blood fatty acids adopt distinct forms in different stages in the blood circulation. They are taken in through the intestine in [[chylomicron]]s, but also exist in [[very low density lipoprotein]]s (VLDL) and [[low density lipoprotein]]s (LDL) after processing in the liver. In addition, when released from [[adipocytes]], fatty acids exist in the blood as [[free fatty acids]].

It is proposed that the blend of fatty acids exuded by mammalian skin, together with [[lactic acid]] and [[pyruvic acid]], is distinctive and enables animals with a keen sense of smell to differentiate individuals.<ref>{{cite web
 | url=https://www.sciencedaily.com/releases/2009/07/090721091839.htm
 | title=Electronic Nose Created To Detect Skin Vapors
 | date=July 21, 2009
 | website=Science Daily
 | access-date=2010-05-18
}}</ref>