Vance that is a great post. We've discussed EFA's endlessly on this forum, and they are buried way back in posts. Thanks for bringing them to the forefront again.
It's the proper mix of 3-6-9 that's essential. That's why when people only take flax oil or coconut oil they are throwing the proper balance out of whack.
It's essential for every organ of your body. I'm lazy, so I get a pre-mixed 3-6-9 from the store (Total EFA). I love that stuff and my body reacts quite well to it. I usually swallow a tiny bit before I start to swish.