11-Hexadecenoic acid, a monounsaturated fatty acid, comprises both 11-cis-hexadecenoic acid and 11-trans-hexadecenoic acid. These isoforms are present in ewe milk fat and their concentrations increase when the diet is supplemented with lipids from linseed, sunflower, olive, or fish oils. Additionally, 11-trans-hexadecenoic acid is found in intramuscular fat of both male and female foals. The product is a blend of the 11-cis and 11-trans forms. [Matreya, LLC. Catalog No. 1208]