Grocers in O Fallon are the owners of grocery stores that retail food, stocks different kinds of foods from various places & cultures & sell those to the customers. Large grocery stores that stock clothing or household products instead of food, are called Supermarkets.
In order to compete with large supermarkets, the grocers in O Fallon create a niche market by selling unique, premium quality, or ethnic foods that are not easily found in supermarkets.