A common alternative diet used to cleanse or flush the gallbladder consists of olive oil, juice and herbs, though there is no scientific evidence supporting its effectiveness, according to Mayo Clinic. Unless gallbladder sludge or gallstones are causing symptoms, treatment is usually not required.
The diet may result in a false sense of success, with individuals using the gallbladder cleanse often noticing what appears to be gallstones that are actually globs of olive oil and herbs, advises Mayo Clinic. Risks associated with the cleanse include nausea, vomiting, diarrhea and abdominal pain.
Some individuals with gallbladder sludge never know about it, according to Everyday Health. In some cases, sludge in the gallbladder goes away on its own. While uncommon, a serious risk associated with gallbladder sludge is acute inflammation, a result of the sludge combining with mucus to block the bile duct.
It is estimated that approximately 10 percent of adults have gallstones, but 80 percent don't experience symptoms for many years if at all, according to the Merck Manual. Contrary to popular belief, fatty foods do not bring on gallbladder attacks; heavy meals of any kind are the biggest biliary colic trigger. Significant dietary changes are also known to make gallstones worse.