Zinc has been found to help the liver in many ways, including all liver diseases including a fatty liver and cirrhosis. Current research suggests zinc’s ability to inhibit inflammation makes it an extremely important for proper liver function. 
Zinc in a mineral and a trace element. Because it is a trace element very small amounts of it are crucial for our health. 
A study conducted by Dr Scott Read and Associate Professor Golo Ahlenstiel showed zinc is not only anti-inflammatory but also has antiviral effect of interferon, a protein a strongly associated with tissue damage in chronic liver disease. 
Dr Read claims ‘the data shows that zinc is a simple and effective treatment against acute and chronic inflammation of the liver.’ 
Zinc is essential for cell function, including celling growth, repair, division and activation. It activates DNA synthesis and RNA transcription. Zinc has over 300 enzymes, so even if you have a slight deficiency it can deeply affect your immunity and liver health. 
If you experience appetite loss, hair loss, altered taste and smell, testicular atrophy, cerebral and immune dysfunction it is often an indication of a fatty liver and at its extreme chronic liver disease.