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Related Experiment Videos

Measuring fruit and vegetable intake: is five-a-day enough?

D N Cox1, A S Anderson, J Reynolds

  • 1Institute of Food Research, Earley Gate, Reading, UK.

European Journal of Clinical Nutrition
|March 1, 1997
PubMed
Summary
This summary is machine-generated.

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Self-monitoring fruit and vegetable (F&V) portions accurately estimates consumption, encouraging increased intake. This method supports public health goals for higher F&V consumption.

Area of Science:

  • Nutrition science
  • Dietary assessment methods
  • Public health interventions

Background:

  • Accurate measurement of fruit and vegetable (F&V) intake is crucial for public health.
  • Current self-monitoring methods require validation against objective measures.
  • Understanding F&V consumption patterns informs dietary guidelines.

Purpose of the Study:

  • To validate a self-monitoring portion measurement of F&V intake against weighed intakes.
  • To assess the reliability of the "5-a-day" concept in promoting increased F&V consumption.

Main Methods:

  • A randomized controlled trial component involving 42 adults.
  • Subjects received intensive group advice on F&V consumption and portion definition.
  • Simultaneous self-recorded portion measures and weighed inventories were collected.

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Main Results:

  • A significant correlation (r=0.73, P<0.000) was found between portion and weighed F&V intakes.
  • The portion measure tended to underestimate actual intake.
  • The "5-a-day" concept, using 80g/portion, rarely produced false positives but could lead to false negatives.

Conclusions:

  • Self-monitoring F&V portions, when combined with defined portion sizes, can effectively encourage increased consumption.
  • The "5-a-day" health message is a viable strategy to promote desirable F&V intake exceeding 400g daily.