I'm pretty sure that white vinegar is bad all the way. No reason to drink it. Acidic to the body (before and after). This means it can allow harmful creatures to proliferate, and cause hardening in the joints, such as excacerbating arthritis. It can be useful for external uses such as cleaning the bathroom, or even putting on nail fungus, though.
If you want to drink vinegar for therapeutic (good) effects then you should use raw apple cider vinegar, with the mother. There is a forum for ACV here at curezone.