What is the name for eating philosophies where you avoid staples

Factual Questions
1

By staples I mean corn, wheat, barley, potatoes, soybeans, rice, etc.

I know the paleo diet eschews staples, but is there an actual philosophy devoted to this concept or is it just the paleo diet?

2

Those are all domesticated crops, so avoiding them is trying to eat like our hunter-gather ancestors: The Best Food for Diabetics to Eat | Healthfully

3

Ketogenic diet?

4

Orthorexia nervosa?

5

If someone tells me they eat a low-carb diet, I picture them avoiding all the things in the OP’s post.

6

We eat soybeans tho. Not the other stuff, you’re right.