Are Grits Good For You? Yes!*
*If They are Whole-Grain!
As you might guess, this topic is actually a fairly complex one. IF the grits are whole grain (a rather imprecise term) they are really good for you. Not all grits are whole-grain, but most mills manufacturing whole-grain products will be sure to mention it on their product labeling. Whole-grain means that the grain has been ground or otherwise processed in a way that leaves a significant portion of the components of the grain in whatever product is in question. This includes the bran, germ, and endosperm of the grain or grains in the final product.
It doesn't really matter if the grits are stone-ground, to harness the healthy aspect of grain (be it corn or any other grain) a portion of the entire kernel, berry, or groat must be in the final product. These various parts of the seed contain complex carbohydrates that your digestive system needs to maintain a healthy metabolism. Without these complex carbohydrates, all that is left are the refined carbohydrates: the infamous "white starches" that essentially behave like sugar in your body. And sugar is really, really bad for you. Whether it is sugar or refined grain products, the glycemic index is high, leading to a spike in blood sugar and an array of deleterious health effects.
But why is all the other stuff in grain so good for you? The answer is resistant starch.