The present study is to give a preliminary discussion on the potential applications, risks, food safety, and current regulatory situation of nanotechnology in relation to foods, thus to provide the industry, legislators, and government with some points, rather than a roadmap, that will need to be addressed as regulation for food nanotechnology moves forward. From the food industry and public safety standpoints, some recent food applications of nanotechnology, safety and risk problems of nanomaterials, routes for nanoparticles entering the body, existing regulations of nanotechnology in several countries, and a certification system of nanoproducts are discussed.