Department of Sociology, William Paterson University, Wayne, NJ 07470, USA.
Nutr Res. 2010 Jun;30(6):396-402. doi: 10.1016/j.nutres.2010.06.008.
The availability of fruit, juice, and vegetables (FJV) in home and school settings is positively associated with adolescent fruit and vegetable consumption. Less is known, however, about the influence on youths' consumption of the availability of FJV in community-based settings. This study examined fruit and vegetable consumption in a sample of 156 African American adolescents (mean age, 11.89 years; range, 10-14 years; 55% female) who were provided with 3 servings each of FJV (9 servings daily) for 3 consecutive days during summer camp programming in New York City youth services agencies. It was hypothesized that youths' mean intake (measured via direct observation) would exceed the mean intake of 3.6 daily servings found among similarly aged youths in the US population given the consistently high number of servings of FJV offered. Intake differences by sex, age, and meal were also examined. Youths' mean (SD) intake of 5.41 (1.51) daily servings was higher than the population mean intake of 3.6 daily servings (P < .001). Youths aged 10 years had higher intake than did youths aged 11, 12, and 13 years. Youths' FJV intake was lower at lunch than at breakfast and dinner meals. Across meals, youths consumed more juice than fruit or vegetables. Increasing the availability of FJV in community-based settings is a promising strategy for enabling fruit and vegetable consumption among African American adolescents. Youths may also benefit from intervention to prevent age-related declines in intake, increase consumption of FJV at lunch meals, and encourage higher consumption of vegetables and fruit.
家庭和学校环境中水果、果汁和蔬菜(FJV)的供应与青少年水果和蔬菜的消费呈正相关。然而,关于社区环境中 FJV 供应对青少年消费的影响知之甚少。本研究在纽约市青年服务机构的夏令营项目中,对 156 名非裔美国青少年(平均年龄 11.89 岁,范围 10-14 岁,55%为女性)样本进行了水果和蔬菜消费研究,这些青少年连续 3 天每天获得 3 份 FJV(共 9 份)。研究假设,鉴于提供的 FJV 份数始终很高,与美国同龄人群中每天 3.6 份的平均摄入量相比,青少年的平均摄入量(通过直接观察测量)将超过这一水平。还检查了性别、年龄和膳食对摄入量的影响。青少年平均(SD)每天摄入 5.41(1.51)份,高于美国人群每天 3.6 份的平均摄入量(P<.001)。10 岁的青少年摄入量高于 11、12 和 13 岁的青少年。与早餐和晚餐相比,青少年午餐时的 FJV 摄入量较低。在各餐中,青少年摄入的果汁多于水果或蔬菜。增加社区环境中 FJV 的供应是促进非裔美国青少年水果和蔬菜消费的一种很有前途的策略。干预措施也可能使青少年受益,以防止与年龄相关的摄入量下降,增加午餐时 FJV 的摄入量,并鼓励增加蔬菜和水果的摄入量。