How is food security measured? Food security measurements are taken by the United Nations. They use a formula that is devised by World Leaders. Food security information is not available to the public so no one really knows how it is measured. Food security is measured by how much is eaten divided by how much is stored and multiplied by two. Food security is measured by world food stocks, which is the amount of rice, O wheat and corn stored by governments from previous years to cushion against any food shortages in the coming year