“…As it has been indicated above, consumers' knowledge for basic dietary issues cannot be taken for granted. As a result, if there is no prior indication of consumers' knowledge regarding dietary issues and/or familiarity with certain products, such as functional foods it is very difficult to determine , Alfieri and ByrdBredbenner (2000), Armstrong et al (2005), , Bogue et al (2005), , , Kim et al (2001), Wu et al (2005) Alfieri and Byrd-Bredbenner (2000), Brecher et al (2000), Lee et al (2007), LeGault et al (2004), Teratanavat and Hooker (2006), Tuorila and Cardello (2002) Bech-Larsen and Grunert (2003), , Croft et al (2002), Dean et al (2007), Di , Kozup et al (2003), Luckow et al (2006), , Patch et al (2005), Peng et al (2006), Roe et al (1999), Schrö der and Horsburgh (1997), , Van Trijp and Van der Lans (2007) Abbott (1997), , Bruhn et al (2002), , Mayer et al (1998, Bech-Larsen and Grunert (2003), , Burton et al (2000), Corney et al (1994), Dragicevich et al (2006), Ford et al (1996), , Kozup et al (2003), Lohmann and Kant (2000), , Roe et al (1999), Teratanavat and Hooker (2006), , Van Kleef et al (2005), Van Trijp and Van der Lans (2007), , …”