My point? If you think a staple food vast numbers of human beings have relied on for literally all of recorded history (not to mention thousands of years prior) is "not particularly healthy", then perhaps your definition of "healthy" is a little too exalted for everyday use.

Again, “literally all of recorded history” is literally meaningless. I also find it bizarre that you would find something as simple as a well balanced diet (i.e. one humans enjoyed for hundreds of thousands of years prior to the agricultural revolution) as an “exalted” definition of healthy.