I think it's fair to say most plants are toxic. The ones we eat as staples are the exception. Foods that you might want to use as a staple, like pine nuts and s

I think it's fair to say most plants are toxic. The ones we eat as staples are the exception. Foods that you might want to use as a staple, like pine nuts and some beans, end up being toxic when consumed regularly, and anything left isn't really suitable as a main source of calories.