It is always worse for liver to drink regularly than to drink heavily from time to time.
Please note that French people (who drink wine everyday) have highest rate of liver cirrhosis.
is not a disease. It is a group of liver diseases which can be caused by alcohol including fatty liver
and liver cirrhosis.
So fatty liver can be caused by alcohol intake as well as by bad diet and obesity.
Due to liver destruction its metabolism
gets changed so instead of functional liver cells, fat appears (and replaces liver cells). Such process usually takes many years. It does not give any symptoms at all as the rest of liver is enough for proper function ( we can live with only 1/3 of healthy liver).
Fatty liver is a reversible condition. However if liver destroying factors are not eliminated, fatty liver turns into irreversible liver cirrhosis. Liver cirrhosis is a permanent liver rebuild where scar tissue appears instead of regular liver cells. This condition sooner or later gives liver failure
and death (liver transplant
is the only cure for such patients).