UDCA could be presented just after bariatric surgical treatment to avoid cholelithiasis, which commonly occurs as a result of quick fat reduction developing biliary cholesterol oversaturation in addition to biliary dyskinesia secondary to hormonal adjustments.[13] Nonabsorbed ursodiol passes into your colon where it is generally seven-dehydroxylated to lithocholic acid. https://www.youtube.com/watch?v=A07qHOeWON8