Fluttershy wrote:Yes but do we have all the necessary nutrients from what we can grow? How about in the winter? We can store things but do everything we can store have all we need? Can we grow all those plant that give us food that we can store? Some countries can grow plant that other countries can't grow like pineapple for example. Because of the climate.
That's a good question, and the answer is YES. We could even obtain all nutrients from corn, it just has to be processed.
Look into some simple fermentation based processing, like tempeh, natto, miso, etc.
While corn is not a nutritious food on its own, any food product, fermented correctly and with the basic nutrients there, can become more complete. E.g. certain bacteria can produce extra lysine to make corn complete protein.
We ultimately only need certain amino acids, fatty acids, and an assortment of vitamins and minerals which could all be essentially corn derived (just not fresh corn).
The same is true of potatoes, wheat, etc.
Corn could be stored dry until ready to use, and then fermented right before eating.
Anon0045 wrote:
Humans wouldn't eat those crops, and it's easier to grow, but we could probably use a lot of that land to produce crops that humans do eat.
That's a common mistake. While there are different varieties, nothing is inherently inedible about them.
Livestock are typically fed corn and soybeans themselves (meal) in adequate amounts to feed humans. In addition, they are fed silage, which is just corn and soybean crop (usually) harvested early while it's still green. These are all essentially human edible crops with basic processing.
Finally, even in the case of livestock eating grass, that's a perfectly viable human food source with some basic mechanical processing (it needs to be juiced).