Local food (also regional food or food patriotism) or the local food movement is a "collaborative effort to build more locally based, self-reliant food economies - one in which sustainable food production, processing, distribution and consumption is integrated to enhance the economic, environmental and social health of a particular place" and is considered to be a part of the broader sustainability movement. It is part of the concept of local purchasing and local economies, a preference to buy locally produced goods and services. Those who prefer to eat locally grown/produced food sometimes call themselves "localvores" or locavores.