👉 Bilirubin is a pigment that is produced by the liver in response to an increase in red blood cells. It helps in transporting oxygen from the lungs to the body's tissues and organs, but too much can be harmful if it is not properly regulated or excreted properly. Bile acids are released from bile into the intestines during digestion, which causes them to break down bilirubin. When this substance accumulates in the blood, it can lead to jaundice