11

The reason why certain variety of corns are used for popping is in the specific properties of the seed (you need a proper shell permeability and a proper humidity of the core to pop it). All the rest is perfectly viable for general purposes nutrition. You might have additional risks due to the limited genetic variety, but that's applicable with any ...


5

I suggest looking into South African ostrich farms. While they haven't replaced chicken, they are a widely used food source there. Ostrich meat was widely available in supermarkets last time I visited, on par with "common" meats like pork, beef, and chicken. If you say that megapodes are easily kept as livestock, give lots of eggs and meat, there would be ...


5

It will depend on the variety of popcorn and the prep method. Some varieties will by hybrid that won't breed true. Depending on the specifics of that, you could get a sad little bit of corn in the next generation that has about 3 kernels on each cob. It may be that you can plant several generations and get something useful out of this. Or it may be that it ...


4

In Latin America we have capybaras )we call them chigûiros in Colombia), it's not that common in cities to eat rodents since natives are the ones who eat them, but it seems capybaras have low fat and cholesterol compared to other animals: Is in Spanish, try using translator Also, capybaras have a fast gestation period: 150 days for 2-8 pups and each ...


3

One plant can't be super-efficient at everything. Think of it in terms of where the plant is spending its resources. It is gaining energy from the sun (photosynthesis) and taking in carbon dioxide, water, oxygen and nutrients from the air, ground water and soil. It then has to allocate those resources to doing various things. For instance: Get bigger to ...


3

Salt. Salt is fairly useful if not crucial to life, and might be incredibly rare in your setting. Currently, two most common ways to extract salt, is firstly through the evaporation of sea water. With you stating seafood is rare, this might not be a readily available option. The other is by mining, but unless your city is conveniently sitting on a huge salt ...


2

Yes, if your civilization has done a few things over the course of its history. The rodents are domesticated. Your people have been breeding them for centuries. So like modern pigs, modern chickens and modern cattle, they have been selectively bred to grow fast (deliberately or accidentally). They therefore no longer resemble their wild ancestors in terms ...


2

This already happens, with Padrón peppers. They are usually very mild, but you will occasionally get a hot one, so they’re sometimes known as Russian roulette peppers.


1

Frame challenge! Limited diet of regular old stuff is not interesting enough. Your city dwellers should get all caloric needs met by food grown in the subterranean vats. They could call it "vat". Spices, though, come in any and every variety - including super esoteric things that we would not consider spices like sap, burnfur, gall, birch, and so on. ...


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