Eat This and Not That or Vice Versa

I really wish the human body would come with an instruction manual that covers, especially in my case nutritional information, food combining, what not to eat which causes gout or high blood pressure, gut biome, inflammation etc. I've mastered so many things in my life but eating and all its nuances have confounded me sending me down many a wrong path. My struggles with food have lasted a lifetime and I'm closer to the end of my chapter in life than the beginning and still not closer to making any headway to my struggle