Objective: To examine the associations of nutrition literacy with nutrition information sources (usage frequency, degree of credibility) and barriers to searching for nutrition information.
Method: A cross-sectional study was conducted among Japanese registered monitors (aged 20-59 years) from a social research company via an online survey, and responses from 1,252 people (631 men, 621 women) were analyzed. Multiple linear regression analysis (forced entry method) was used to examine the associations of nutrition literacy with nutrition information sources (usage frequency, degree of credibility) and barriers to searching for nutrition information.
Results: Positive associations were found between nutrition literacy and several nutrition information sources: medical professionals and experts (usage frequency: β=0.12, p<0.01), friends/acquaintances (degree of credibility: β=0.14, p=0.01), and the Internet (degree of credibility: β=0.23, p<0.01) in men, and the Internet (usage frequency: β=0.17, p<0.01; degree of credibility: β=0.19, p<0.01) and friends/acquaintances (degree of credibility: β=0.13, p=0.01) in women. The items for barriers significantly and negatively associated with nutrition literacy were “information that I find myself is too difficult to understand” in both men and women (men: β=-0.23, p<0.01; women: β=-0.25, p<0.01), and “felt frustrated and irritated when searching for nutrition information” (β=-0.11, p=0.01) in women.
Conclusion: The results suggest a possible negative correlation between nutrition literacy and presence of barriers to searching for specific nutrition information. As for nutrition information sources that may influence nutrition literacy, both men and women cited friends/acquaintances and the Internet, while men also listed medical professionals and experts as an additional source.
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