Dietary Assessment and Effectiveness of Dietary Education Based on Randomized Controlled Trial

  title={Dietary Assessment and Effectiveness of Dietary Education Based on Randomized Controlled Trial},
  author={Mariko Watanabe and Kazue Yamaoka and Toshiro Tango},
  journal={The Japanese Journal of Behaviormetrics},
In order to develop Evidence Based Nutrition (EBN), it is important to conduct a reliable assessment of dietary intake and to examine the effectiveness of dietary education through a randomized controlled trial. This paper mainly describes two important issues. The one is the assessment of the validity and reproducibility of a self-administered food frequency questionnaire as a tool for assessing appropriate dietary intake. Another is the approach for examining the effectiveness of dietary… 

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A population at risk of health impairment due to deficiencies in the body mass index, energy intake, and nutrient intake is highlighted, and the results indicated the association between breakfast intake and complaints.



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The NDE was shown to reduce glucose levels in high-risk subjects for type 2 diabetes and had a significantly lower total energy intake at dinner and daily than the control group.

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The results indicate that an individual dietary assessment and brief counselling based on DHQ might be effective for dietary modification with a community-based health education program in which group-education has normally been used.

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Nutritional epidemiology: issues and challenges.

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Evidence is provided that between-person variation in diet does exist and that simple questionnaires are sufficiently accurate to measure these differences and it remains to be seen whether these methodologies can be reliably employed in case-control studies.

Validation of a youth/adolescent food frequency questionnaire.

A simple self-administered questionnaire completed by older children and adolescents can provide nutritional information about this age group, similar to that found among adults.

Can the EPIC food-frequency questionnaire be used in adolescent populations?

The agreement between the EPIC FFQ and the 7-day WDR was very poor on both a group and an individual basis, and demonstrates that the EPic FFQ is not an appropriate method for estimating absolute intakes in this age group.