I was wondering if you would have any reading recommendations on this?
Hmmm...I've been reading about this for quite a while so it's hard to remember where is best to learn about it. LOL
BUT...I think Ray Peat is a good place to start
http://raypeat.com/articles/
Peat is pretty down on PUFA (the easily oxidized PolyUnsaturated FAts) and I don't agree with him on everything but IMO he's a "must read" for anyone learning and thinking critically about carbs, fat, and insulin resistance.
Danny Roddy does some nice syntheses of Ray Peat, and offers some ideas of his own. He has no credentials but does a good job of picking apart the "technical" aspects of a lot of physiological functioning. His latest ebook is on Amazon for download, I think it costs $0.99. I don't agree with all of Roddy's ideas, either, but it's nice that he does a lot of the "putting together" of Peat so we don't have to.

He's coming at it from mainly a hair loss perspective (he says following Peat's dietary suggestions reversed his hair loss) but the basic physiology he discusses is relevant to everyone and at any rate hair health is usually a good indicator of overall health.
Peat also makes a good case for carbs but doesn't take into account starch and gut health, so is lacking as a unified theorist. But he's contributed a lot to the reversal of thinking on carbs that we're seeing, that counters Atkins and the silliness of the mainstream Paleo narrative.
Perfect Health Diet people seem to largely share Peat's views on PUFA, and there's a lot of good discussion of physiology in the PHD book. Anyone who notices my posts around here probably knows I like that book a lot.
I also found Barry Sears' (The Zone Diet guy) books to be pretty enlightening. AFAIK he was the first one to really start talking about (or at least popularize to the mainstream) the role of eicosanoids and fat ratios in inflammation and chronic conditions like insulin resistance/diabetes. I got a lot of good information on inflammation and insulin resistance out of his original book "The Zone", and also "The Anti-Inflammation Zone", even if his thoughts on PUFA are wrong. Everyone knows Sears as a low-carb guy but he also helped popularize (or maybe started) the high dose fish oil craze back in the early '00's. Of course we now know that high-dose fish oil is a BAD IDEA, but I jumped on that bandwagon back then and in fact the Zone with high-dose fish oil was the first dietary strategy I tried that ever made a truly positive, noticeable difference in my health. Before that I was basically taking it all on faith because alternative health strategies appealed to me. My triglycerides were over 200 when I started and within 3 months triglycerides had plummeted to like 60. My cholesterol was high, too, and that came down a lot as well, even if the HDL:LDL ratio still wasn't good. I remember the doctor at the university health clinic was extremely shocked at the very fast reduction of these crucial markers with no medication.

Incidentally, I was first diagnosed with high triglycerides ("hyperlipidemia") two decades previous, when I was still a very young (and slender) woman.
If you decide to read Sears, please keep in mind he definitely contributes some of the silliness to our "popularized understanding" of diet and health that we're currently in the process of overcoming, but that doesn't negate the fact that there's some good info for non-scientific laypeople in his books. Particularly with respect to inflammation and its role in insulin resistance and diabetes.
Anyway, those are the places I'd start reading. You can go to PubMed and try to read the articles but these guys mostly break the jargon down for us unlearned peasants, which always appeals to me.
Yep, I don't eat nuts or seeds any more, or at least extremely infrequently. Oatmeal and occasionally other grain products are where I get most of omega-6. Maybe chicken and pork products but don't eat those much, either.