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Consumer misperceptions of diet quality.

J N Variyam1, Y Shim, J Blaylock

  • 1Economic Research Service, U.S. Department of Agriculture, Washington, DC 20036-5831, USA. j.variyam@ers.usda.gov

Journal of Nutrition Education
|May 29, 2002
PubMed
Summary

Many people overestimate their diet quality. About 40% of household meal planners are "optimists," perceiving their diet as healthier than it is, influenced by factors like household size and education.

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Area of Science:

  • Nutrition Science
  • Public Health
  • Behavioral Science

Background:

  • Accurate self-assessment of diet quality is crucial for dietary behavior change.
  • Previous research has not fully explored the extent of consumer misperception regarding diet quality.

Purpose of the Study:

  • To compare consumers' self-perceived diet quality with objectively calculated diet quality.
  • To identify factors contributing to misperceptions of one's own diet quality.

Main Methods:

  • Diet quality was assessed using self-perception and the Healthy Eating Index (HEI).
  • Data from 2862 household meal planners/preparers were analyzed using bivariate and multivariate logistic regression.

Main Results:

  • Approximately 40% of household meal planners/preparers were classified as 'optimists,' overestimating their diet quality.
  • Significant predictors of optimistic misperception included household size, gender, education, smoking status, perceived health, and nutrition beliefs.

Conclusions:

  • A substantial portion of the population exhibits a misperception of their diet quality.
  • Health professionals should address this 'dietary optimism' and educate individuals about their actual diet quality.

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