Well whole wheat, flax, and any other bread with all that suff on it, that isn't white bread is healthy, because it has a lot of nutrients that you need, but white bread isn't healthy at all...
The flour in white bread is bleached, so you're eating blech when you eat white bread. Benzoyl peroxide and chlorine are two of the chemicals found in the bleach.
All the nutrients are taken out of the bread, so that makes it even more unhealthy, I think in Switzerland or something, they put a tax on white bread and they're trying to make everyone to switch to whole weat.
We have whole weat everything now, you won't find any white bread in our house...