Is ‘five-a-day’ an effective way of increasing fruit and vegetable intakes?

Public Health Nutrition

PAL Ashfield-Watt¹  AA Welch¹  NE Day¹  SA Bingham¹ 

关键词: 5-a-day;    Fruits and vegetables;    Intake frequency;    Portion size;   

DOI  :  10.1079/PHN2003524

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

Objectives:To assess whether the amount of fruits and vegetables consumed depends on the serving size or on how often fruits and vegetables are eaten.Design:Estimation of the weight of serving sizes and the number of fruits and vegetables eaten daily, using a validated food diary method.Setting:Free-living men and women participating in the Norfolk arm of the European Prospective Investigation into Cancer and Nutrition (EPIC).Subjects:Two hundred and sixty-nine men and women sampled from EPIC–Norfolk to participate in a study of simple methods of assessing fruit and vegetable intakes.Results:The average portion of all fruits and vegetables measured was 87 g, close to the standard portion size of 80 g used as the basis of ‘5-a-day’ recommendations. There was a wide variation; the average portion size for baked beans was 147 g while for lettuce it was 26 g. The 20th and 80th percentiles also showed a large range, e.g. 39–72 g for carrots and 60–150 g for strawberries. Women ate more fruit than did men but fewer vegetables, so the total amount of fruit and vegetables eaten by men and women was the same. High consumers of fruits and vegetables (≥400 g day-1) ate them ~5 times a day whilst low consumers (

【 授权许可】

Unknown