Do what ya gotta do brotha/sista
No one is going to tell you that 'Lots of vegetables, salads and lean meats, eggs and dairy' is bad for you.
I do good with some REALLY big fatty meals and lots of veggies cooked in fat, tubers covered in fat, fruit, dairy and nuts. I know I'm not going to start eating grains again - the odd birthday cake or holiday cake excluded. If you think people or groks who would have to 'run down an animal' ate only the lean parts - there's no chance that is correct. The lean cuts would go to the dogs.