Generally speaking, a diet should start off based on your ancestry. Look at how your ancestors ate and go from there. It's not really PC to say this, which is why you don't hear much about it.
If you're Japanese, don't eat like an Eastern European mountain goat fucker. Instead eat a lot of rice. If I eat rice, though, I get fat. I do very well on high protein/high fat diet. That's because it's in my DNA to eat that way. Literally.
If you're Italian, you probably do better with pasta. Eat lots of olives.
Start at that baseline. Then remove/add foods and see how you feel.
If you're Japanese, don't eat like an Eastern European mountain goat fucker. Instead eat a lot of rice. If I eat rice, though, I get fat. I do very well on high protein/high fat diet. That's because it's in my DNA to eat that way. Literally.
If you're Italian, you probably do better with pasta. Eat lots of olives.
Start at that baseline. Then remove/add foods and see how you feel.