Unrefined brown sugar undergoes less processing than white sugar, allowing it to retain some of its molasses content and natural brown color. Molasses is what you get before the refinement and crystallization with animal bones, then you get the processed white sugar. You can turn white sugar back to brown sugar by adding molasses. Neither is healthy in large amounts. Brown sugar gas slightly more minerals.
I agree too much sugar in any way is bad for you.
Unrefined brown sugar undergoes less processing than white sugar, allowing it to retain some of its molasses content and natural brown color. Molasses is what you get before the refinement and crystallization with animal bones, then you get the processed white sugar. You can turn white sugar back to brown sugar by adding molasses. Neither is healthy in large amounts. Brown sugar gas slightly more minerals.