Your liver is a key player in your body’s digestive system. Everything you eat or drink, including medicine, passes through your liver. The liver is the second-largest organ in your body (the skin is the largest). It's about the size of a football and sits under your lower ribcage on the right side. It filters chemicals like drugs and alcohol from the blood; regulates your hormones and blood sugar levels; stores energy from the nutrients you take in; and makes blood proteins, bile, and several enzymes that the body needs. Care for Your Liver Don't drink a lot of alcohol. Alcohol can damage liver cells, leading to the swelling or scarring that becomes cirrhosis, which can be deadly. Eat a healthy diet and get regular exercise. A condition called nonalcoholic fatty liver disease (NAFLD) also can lead to cirrhosis. It comes from being overweight, having diabetes, or having high levels of fat in your blood. Stay away from medicines that harm the liver. Cholesterol drugs and the painkiller acetaminophen (Tylenol) can be toxic to the liver if too much is taken over time or at once. You may be taking more Tylenol than you realize; it's found in hundreds of drugs like cold medicines and prescription pain medicines. Certain combinations of drugs can be toxic to the liver. Be aware of hepatitis and how it is transmitted. Hepatitis is a virus that causes the liver to become inflamed. There are several different types Hepatitis A is transmitted by water or food that's been contaminated with bacteria found in feces. It usually gets better on its own. Hepatitis B and C are transmitted through blood and body fluids. If untreated, it can lead to cirrhosis, liver cancer, and liver failure. Hand washing and avoiding places that don't seem clean can prevent hepatitis A. To prevent hepatitis B and C, don't share items like toothbrushes, razors, or needles, limit the number of sex partners.