Sorry, I didn't read the whole thread so I apologize if someone else posted this:

Good Calories, Bad Calories (2007).

Great book that will change the way you think about nutrition and food. It's a long read and is more like a college level course in nutrition. It takes a VERY deep dive into all the incorrect advice and recommendations we've been getting our whole life from the government, etc.

It definitely pushes the low-carb thing but it's a lot more than that. If you truly want understand how your body processes different foods check it out. And don't worry if some of it overly technical and "science-ee" (is that a word? ) You don't have to totally get it all to understand what it being taught.