Yes, walnuts do contain Omega-6 fatty acids in addition to Omega-3 fatty acids. While they are a rich source of alpha-linolenic acid (ALA), a type of Omega-3, they also contain significant amounts of linoleic acid (LA), which is an Omega-6 fatty acid.
The presence of both Omega-3 and Omega-6 fatty acids in walnuts makes them a balanced choice for those looking to improve their intake of essential fatty acids. However, it's still important to focus on maintaining a healthy balance between Omega-6 and Omega-3 fatty acids in your overall diet to promote optimal health.