The problem with white flour is it is very highly processed and is not a complete food. Whole-grains have stuff like the endosperm, germ, bran etc all working together to help your body in some way, and also aid in the digestion. White flour is just a simple carbohydrate isolate from the whole load. As a result your body cannot digest it very easily and has to work harder to process it. Plus there is next to nill in the nutrition margin for white flour. Also it spikes your blood sugar giving you an insulin boost. So you shoot up then crash down and get all spaced out. "2 hrs after pasta scenario". Or pancake breakfast.
That said you can get bread made with spelt flour, kamut flour, brown rice flour or many more at lots of health food stores.
These flours are more nutritious because they have not been over farmed the way wheat has. 40 bushels of wheat now is nutritionally equivalent to 1 bushel of wheat 50 yrs ago!! All do to massive over farming. Bummer!
I love bread too!