Instead, I suggested a liver function test and asked if he had been vaccinated against hepatitis B. People with Type 2 diabetes have a higher risk of developing liver disease, particularly fatty liver disease. Hepatitis B and hepatitis C are the two viral infections we watch most closely. If you have not already received the hepatitis B vaccine, I would strongly recommend discussing it with your doctor. A healthy liver supports better glucose control and reduces the risk of serious complications in the future.