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Physiol Behav. 2007 Aug 15;91(5):573-8. Epub 2007 Mar 30.

Food neophobia shows heritable variation in humans.

Author information

1
Department of Food Technology, University of Helsinki, FI-00014, University of Helsinki, Helsinki, Finland. antti.knaapila@helsinki.fi

Abstract

Food neophobia refers to reluctance to eat unfamiliar foods. We determined the heritability of food neophobia in a family and a twin sample. The family sample consisted of 28 Finnish families (105 females, 50 males, aged 18-78 years, mean age 49 years) and the twin sample of 468 British female twin pairs (211 monozygous and 257 dizygous pairs, aged 17-82 years, mean age 55 years). Food neophobia was measured using the ten-item Food Neophobia Scale (FNS) questionnaire, and its internationally validated six-item modification. The heritability estimate for food neophobia was 69 and 66% in Finnish families (h(2)) and 67 and 66% in British female twins (a(2)+d(2)) using the ten- and six-item versions of the FNS, respectively. The results from both populations suggest that about two thirds of variation in food neophobia is genetically determined.

PMID:
17459432
DOI:
10.1016/j.physbeh.2007.03.019
[Indexed for MEDLINE]

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