The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
It regulates the composition of blood, including the amounts of glucose (sugar), protein, and fat that enter the bloodstream.
It removes bilirubin and other toxins from the blood. Bilirubin is a by-product of the breakdown of red blood cells.
It processes most of the nutrients absorbed by the intestines during digestion and converts those nutrients into forms that can be used by the body. The liver also stores some nutrients such as vitamin A, iron, and other minerals.
It makes cholesterol, vitamin A, substances that help blood clot, and certain proteins.
The picture shows the organs of the digestive system, including the liver.
Current as of: May 1, 2026
Author: WebMD Ignite Staff Clinical Review Board All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
Clinical Review Board All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.