The liver metabolizes, stores and synthesizes various substances in the human body. As a result, they are considered the main metabolic and synthetic organ of our body. Their proper functioning is crucial for the normal functioning of our body. The most common liver disease is liver cirrhosis, followed by non-alcoholic fatty liver disease, which is considered the most common liver disease in the Western world. The functioning of the liver is consequently also related to our lifestyle. Coffee and tea are considered to be one of the most popular beverages in the world. It is known that both contain different active substances that also have an impact on the liver function and overal condition of our body.