Many people believe it does. However, it doesn't. It's true that apple cider vinegar has acetic acid, but the acid is not strong enough to dissolve gallstones.
When you go to a grocery store and see a bottle of apple cider vinegar that is crystal clear, don't buy it. It has been over-processed and contains little nutrients. Because the nutrients are kept in the sediment that makes the vinegar cloudy.
The acetic acid in the vinegar is strong enough to burn your throat and mouth when it's undiluted. Even so, the acid won't dissolve gallstones.
So if you have symptoms of gallstones, go to your doctor rather than use apple cider vinegar.
Keyword: can apple cider vinegar dissolve gallstones