Alpha-1 antitrypsin deficiency can cause liver disease and even, sometimes, liver failure, in newborns. It can also cause liver disease later in life, even among people who do not drink alcohol or who are not exposed to toxic substances that cause liver damage. Dr. Jeffrey Teckman is a paediatric hepatologist in St. Louis, Missouri, who knows a lot about Alpha-1 and liver disease. *this post has been edited as it breaches HealthUnlocked guidelines*