Much of the fats we consume are in the form of omega fatty acids. The most commonly discussed of these are the Omega-6s and Omega-3s. Both of these fatty acids are essential for human health and must be obtained through diet.
The number used to differentiate the omega fatty acids describes the location of the carbon-carbon double bond in the fatty acids carbon chain. Omega-3s have the double bond at the 3rd carbon atom from the end of the chain, and Omega-6s have the double bond located at the 6th bond (again counting from the end).
Most of the online discussion claims that omega-6s are strictly inflammatory fatty acids. However, this is not the case. Even though most of the omega 6 fatty acids are actually inflammatory, others, such as gamma-linolenic acid (GLA), are actually anti-inflammatory. However, only fairly specialty oils (such as primrose, borage , and hemp seed oils) contain significant amounts of GLA. But, even then, a properly functioning body can convert linolenic acid (LA – the most common omega-6) to GLA if required.