There is no need to over-complicate matters with books and other people's ideas, but as far as books go, the closest thing to the complete unbiased truth about diet I've ever seen has been good calories bad calories by gary taubes.
I would start by looking at this diet from a different perspective. Forget everything you've ever heard about food and health and safety for a moment. Imagine looking to nature with a clean slate. What diets do you see being followed in the animal kingdom? Out of these options, which of these animals do you want to be more like? Or where would you like to be on the food chain, and what kind of diet is followed by those animals in the position you seek.
Presumably, you'd want to be highly intelligent, social, incredibly strong, and full of limitless energy. Enough energy to chase down an animal twice your size and wrestle it to its death. In that case you want to follow in the footsteps of a hunting carnivore and the feeding pattern you should strive to emulate involves eating large amounts of fresh raw meat, with preference for the organs, then fat and fatty muscle, and having a day or three of rest and fasting between meals or feeding days. - The hunt yourself or farm direct raw carnivorous full keto paleo diet with intermittent fasting. = ultimate health.
Maybe you're not so ambitious and the very top of the food chain is not for you, but you still want to be near the top and not be considered prey. You will need lots of energy to track down food and compete with others for leftovers. Then you might follow the ways of a hunting scavenger. You are left with the lean muscle meats and some fat and skin. Maybe some fermented plant matter or fresh greens in the leftover stomach contents. Sometimes your food is fresh, sometimes it has aged a bit in the open air. You would eat this whenever possible and if not available, maybe some extra berries or whatever you find. - The raw, sometimes keto, paleo diet. = excellent health.
Or maybe you don't want too much out of life, but still want to be strong and able to defend yourself and your family when needed. The ways of a grazing animal will suit you. Eat plenty of greens and other plant foods that may have fallen to the ground. Maybe even some small game that is easily caught. The raw near-vegan paleo diet with meats on occasion = Pretty good health.
Perhaps you want no more health than a captive slave or farm animal. Then you should follow the human diet. Cook the living hell out of your stale or spoiled food, microwave it if you can, eat plenty of grains, dairy, sugars, lean cuts of factory farmed beef, pork, and chicken, chemicals, and do whatever else your masters tell you to and provide for you easily. If you can't even recognize what plant or part of the animal your food came from, even better. The Standard american diet. = not being dead is all the health you can hope for, if you are young or lucky.