Fatty Acids from animal sources. Essential fatty acids (EFAs) are those lipids that our body is not able to generate on its own, and need to be provided through food and/or supplements. They are a vital source for physiological functions within the human body as well as in the children growth stages, during pregnancy and breastfeeding, and to maintain an optimum standard of health. Their presence in nature can be found in both animal and plant sources. The first classification refers to dairy products, meat and oily fish fats. An adequate intake of the essential fatty acid Omega-3 plays a key role in cognitive development, and as an important part of improving health markers such as anti-inflammatory response and cardiovascular health. In this category, you will find a wide range of fatty acids from animal sources.