Filthy fruit! Confirmation bias and novel food

Second, to investigate if this bias is exaggerated in persons with higher levels of food neophobia. To this end, 117 participants (age M = 21.45, SD = 4.48) carried out an online study. They filled in the food neophobia scale (FNS) and performed a search for additional information scale (SAIS) task.

Four novel fruits were used, two looking tasteful (pomelo and rose apple) and two looking non-tasteful (black sapote and noni fruit). Participants rated their willingness to eat these fruits and subsequently could indicate how eager they were to receive positive or negative information regarding that fruit. The results indicated that the participants were more willing to try the tasteful looking fruits than the non-tasteful.

Additionally, higher levels of food neophobia coincided with less willingness to eat all fruits. Confirmation bias was observed, more negative information was requested for the non-tasteful than for the tasteful fruits. This bias was not related to levels of food neophobia.

These results are important as confirmation bias might make people even more negative towards novel foods and could contribute to even less fruit and vegetable consumption, especially when they look less appetizing.