You are wrong. Sorry. I can't even imagine where you could have read that.
I would rebut you with actual facts, but since you haven't given any information to rebut, there's nothing for me to say except that you've been misinformed.
Do you really need information from me to rebut, when you can so easily look up relevant words like corn (maize), wheat, rice, millets, and balanced diet, to name just a few of the words / terms I talked about, in Google or other search engines, and particularly in Wikipedia?
The Wikipedia articles for many such common human food items often includes a table of nutrient names and corresponding percentages for that food item, such as for the percentage of carbohydrates, proteins, fats, vitamins and minerals, by needed daily value (DV), with a citation to the USDA article on the same subject.
Those are hard facts, not my opinions.
Check them out, then come back and talk.
That is the one of the most important points in my argument above, about why corn sucks nutritionally.
Of course, I did not mean that it is totally useless. Obviously it has some nutrients, just like any other food item has. Maybe I should have mentioned that earlier, in my first comment in this subthread.
I did not mention balanced diet, because I kind of thought that all educated people would know what that means and what it's constituents are - such as carbohydrates, proteins, fats, vitamins, minerals,
Just compare the nutrition from corn (maize) with the nutrition from some of the other food items I mentioned, in said Wikipedia articles.
Here you go, I'm pasting some relevant links below:
https://en.m.wikipedia.org/wiki/Maize
https://en.m.wikipedia.org/wiki/Wheat
https://en.m.wikipedia.org/wiki/Sorghum
https://en.m.wikipedia.org/wiki/Millet
https://en.m.wikipedia.org/wiki/Finger_millet
And there are some more millets. Google them.
Also, for vegetarians (who don't eat meat in any form, land or sea based), which is hundreds of millions of people in the world, due to culture or religion or lower income), legumes are equally important, along with cereals, to give the proper balance of essential amino acids needed to make the needed protein for our bodies.
Google "essential amino acids" and "complete protein" topics.
And I have only scratched the surface of the subject of nutrition. I am by no means an expert. I am just a beginner, who has an interest in the subject, for my own personal use, and to share any info I pick up, with friends.
You're welcome :) ;).