The human organism is set in such a way so it releases naturally most of the waste products formed as a result of its vital activity.
Liver keeps glucose in the form of glycogen and performs its break down when the organism needs energy. Different fats are synthesized in it as well. It receives poisons consumed from the outside and gathered in the intestines, transforms them in non-toxic form and supplies the other organs with purified blood. And it needs help in performing these functions. Only a specialist can order the necessary tests in order to assess if medications which improve its function are needed.
Concerning nutrition, almost all fruits and vegetables are beneficial for the liver.
On the contrary, white flour, ready-to-cook foods, salt, fatty foods, coloring and flavoring agents, and alcohol overuse won’t lead to something good, concerning liver health.