Aspects and embodiments of the present invention relate to the treatment of fatty liver diseases such as for example, Non-Alcoholic Fatty Liver Disease (NAFLD) and Non-Alcoholic Steatohepatitis (NASH). Particularly, but not exclusively certain embodiments relate to activators of glucokinase (GKAs) for use in the treatment of these fatty liver diseases. Also included in the present invention are inter alia pharmaceutical compositions comprising the GKAs, together with methods of treating such disorders as well as other subject matter.