Almost every recipe found here, or anywhere, contains sodium, sometimes a lot of it, in one form or another -- salt, baking soda, etc. The "experts" working for the gummint claim a maximum of 2400 mg sodium intake per day (one teaspoon salt). Other experts claim a maximum of 1500 mg sodium intake per day (2/3 teaspoon salt). A general agreement seems to be one needs only 500 mg per day to meet the body's sodium requirement (1/4 teaspoon salt).
How much salt, or sodium, do you think Grok ate per day? I know there were "saltlicks" scattered around the world but they weren't everywhere. Many plants contain sodium, such as celery or spinach, but many don't. Meat such as venison, rabbit, birds, etc., do not have much, if any, sodium. I suspect the Groks living hundreds of miles from the oceans ate very little "salt." I am in complete agreement with the primal diet but our large intake of salt/sodium is, I think, very far from Cousin Grok's menu.
I bring this up because I have, or had, high blood pressure, completely controlled by keeping my sodium intake to a self-imposed maximum of 900 mg per day. I am aware of others with the affliction, also controlling it with a very low sodium intake. Without having done any real research I suspect this high salt/sodium intake is a rather recent development, totally without any evolutionary help allowing us to fight the consequences of all that sodium.