In the mid-1980s, functional foods were introduced in Japan. These products were based on the concept that food and drugs have same origin. Since then, the market for functional foods in Japan has increased and has been extended into the international market. The global market for functional foods is expected to be approximately $17 billion in 2000 and to rapidly expand in the 21st century (Hickling, 1997).
Despite this expansion, the present regulatory system in most countries has not been updat…