Here in Iowa we grow corn to feed our cows (different, I assume HN-ers could guess, from human-edible sweetcorn). I don't know about the vitamin load. I assume

Here in Iowa we grow corn to feed our cows (different, I assume HN-ers could guess, from human-edible sweetcorn). I don't know about the vitamin load. I assume it's probably less-good than that of the random plants on marginal land. On the other hand, we don't have much for rocky hills or crags around here. In this case, we'd probably be better off using our land to grow a wide variety of nutritious foods besides the corn and soybeans that have become the monoculture here.