I experimented with macronutrient ratios with the goal of controlling blood sugar and inflammation. For me, 5% net carbs and 60g - 100g net protein per day, with the balance of calories coming from good fats is what I tend to eat. I don't track or weigh what I eat on a consistent basis, but some friends at the gym were using MyFitnessPal to track their macros and I did that for a while, so that's where I get those figures. I got that ratio by eating instinctively, not by calculations.
What was interesting in MyFitnessPal was how consistent I was from meal to meal and from day to day. I generally follow Dr. Richard Bernstein's advice regarding blood sugar, and I've had lots of input from Dave Asprey's writings to get a handle on inflammation. Also, I source almost all my food locally from what is in season.
My workout buddy, who is 35 years younger than I am and was never sick like I was, goes crazy with carb cravings when he tries to eat the same macro ratio that I eat. He does this, nevertheless, a few weeks before he enters body-building competitions because he likes the initial water-weight and fat loss. When people ask him how he gets so cut, he tells them it's from carb-loading (LOL) so they don't know his secret.
If you do look for books to guide you, beware of the "cheesecake" paleo books, which are no more than modern cookbooks with lots of substitutions to create breads and desserts. Paleo can be as simple as buying and eating unprocessed foods from animals and plants. As long as they look like what they're supposed to be and not packaged, they are probably similar enough to an ancestral food. As soon as you encounter something that was bagged or boxed, you are going to encounter field-agricultural neolithic foods and processed foods.
