Required for hundreds of vital bodily functions, a healthy diet is crucial in ensuring a happy liver; here are foods that help keep your liver in tip-top condition. Grapefruit Loaded with antioxidants, naringenin and naringin, this citrus fruit can prevent the buildup of excessive connective tissue in the liver, protecting cells and reducing inflammation.  Coffee Studies show that drinking three cups of coffee a day can go a long way in reducing the risk of permanent liver damage by preventing the buildup of fat and collagen. Green Tea According to a study, green tea consumption has been linked to reduced levels of liver enzymes in those who suffer from nonalcoholic fatty liver disease.  Prickly Pear An antioxidant-rich member of the cacti family, the prickly pear fruit has been used to treat liver disease and is known for its anti-inflammatory and antioxidant properties.  Fatty Fish Rich in omega-3 fatty acids, fish such as mackerel, trout, salmon, and anchovies have been linked to reduced levels of fat and triglycerides in the liver.