Which of these fatty acids is found exclusively in breast milk

Docosahexaenoic acid Up to 5-10% of fatty acids in human milk are polyunsaturated. Most of these are linoleic acid with smaller amounts of linolenic acid. Docosahexaenoic acid is found in human milk and brain lipids and is required for the development of our nervous system and visual abilities during the first six months of life. Lack of sufficient docosahexaenoic acid may be associated with impaired mental and visual functioning as well as attention deficit hyperactivity disorder.