Much confusion about functional foods is centered upon the very definition of the term. In its report on the functional foods market in the U.S., Mintel International Group (Chicago) defines functional foods as products that make a distinct, written health claim enhanced with added ingredients or through the act of processing.
For the overall segment, sales of functional bars, candy and snacks are expected to increase 83% at current prices between 2003 and 2008 (a 63% growth at constant 2003 prices). Again, bars will lead the way, though increased competition and maturation may slow growth.