Measuring fruit and vegetable intake: is five-a-day enough?
Eur J Clin Nutr
; 51(3): 177-80, 1997 Mar.
Article
en En
| MEDLINE
| ID: mdl-9076408
ABSTRACT
OBJECTIVE:
Validation of a self-monitoring "portions' measurement of fruit and vegetable (F&V) consumption against a standard of weighed intakes.DESIGN:
Component of a randomized controlled trial.SETTING:
Subjects attended research centres in Reading and Glasgow for instruction and monitoring but undertook free-living dietary changes at home.SUBJECTS:
A study sample of 42 adult men and women fulfilling the main recruitment criterion of eating less than five F&V portions/day but contemplating increasing intakes and providing weighted baseline reported energy intakes exceeding (estimated basal metabolic rate x 1.1).INTERVENTIONS:
Subjects attended an intensive group advice session which included the specific relationship of high F&V intake with reduced risk of disease; practicalities; portion definition and measurement recording. The target was to exceed five F&V portions/day for 8 weeks. MAIN OUTCOMEMEASURES:
Self-recorded simultaneous weighed inventories and F&V portion measures.RESULTS:
Data from subjects who were not evident under-recorders showed correlations between portion and weighed intakes of r = 0.73, (P < 0.000), although the portions measure tended to under-estimate intakes. Using 80 g/portion the "5-a-day' concept tends to create false negatives (namely consumption could be greater than 400 g whilst recording fewer than five discrete portions) but rarely false positives (namely recorded consumption of less than 400 g did not give measures of more than five discrete portions).CONCLUSIONS:
The data suggest that the five portions F&V/day health message, if used in conjunction with defined discrete portions, would encourage desirable consumption exceeding 400 g.
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Banco de datos:
MEDLINE
Asunto principal:
Verduras
/
Registros de Dieta
/
Dieta
/
Frutas
Tipo de estudio:
Clinical_trials
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Año:
1997
Tipo del documento:
Article