You may resume a regular diet. Because you no longer have your storage center for bile, your body will now have to send the bile from its source in the liver. For some people, this results in a transition period where eating fatty food which needs bile to digest, can result in loose bowel movements and bloating. This is not harmful but may not be pleasant – no diet restrictions are required but you may choose to avoid fatty food if you have this reaction and slowly reintroduce fats over time. This usually lasts only a few weeks when it occurs but can last a few months. If you still have loose bowel movements after limiting fatty food, consider adding fiber powder daily (like metamucil or citrucel).
For more information on this and to learn more about recovery after gallbladder surgery, check out this video: