Specifically, corn soaked in lye, (this makes hominy) rinsed, dried, and ground. The finer the grind, the less time it takes to cook, thus, quick grits, instant grits, etc. Soaking the corn kernels in lye breaks down the starches (or something) making it easier to digest.
Grits are nasty. I'm from the South so I know I should like them, but they're, like, corn. Corn... for breakfast. I'll stick with biscuits and sawmill gravy, thank you very much.
GRIT'S..???..........Never Heard Of Them.. Sounds Like Some Type Of Gravel Base You Spread On A New Road...As A Foundation To The Final Bitumen (tar) Top Layer. Probably Tastes The Same Too!!................................(ouch)....... Cheers Glen.