http://sock-doc.com/2011/07/paleo-diet/
"Dairy fats are needed, especially butter. The arachiodonic acid (AA) is necessary for neurological development and health (even in the elderly), as well as hormone production, and even necessary to properly deal with inflammation. Though you can get these fats from red meat, it’s much harder to do, especially if you’re getting the leaner, healthier grass-fed beef."
...ich moechte anmerken, dass das Zitat von einer Seite kommt, die Paleo befuerwortet!