All fats are comprised of fatty acids. There are 2 distinct families of fatty acids: the omega 3 family and the omega 6 family, which are also know as essential fatty acids because they cannot be manufactured in the body and must be obtained from dietary sources. Omega 3 and Omega 6 fatty acids must be balanced within the body in order for both to be effective and scientists believe a ratio of 2 to 4:1 may be optimal. Correct ratios of these essential fatty acids are thought to help with numerous inflammatory conditions and to have many reproductive advantages, such as sperm viability and motility.