More Americans are eating "5 a day" but intakes of dark green and cruciferous vegetables remain low
More Americans are eating "5 a day" but intakes of dark green and cruciferous vegetables remain low
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DOI：
10.1093/jn/130.12.3063
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发表时间：
2000-12-01
影响因子：
4.2
通讯作者：
Hampl, JS
中科院分区：
文献类型：
--
作者：
Johnston, CS;Taylor, CA;Hampl, JS
流行病学调查一再表明，经常食用深绿色和十字花科蔬菜，特别是西红柿和柑橘类水果与降低癌症风险有关。我们使用1994-1996年个人食物摄入量持续调查来检查美国人消费的水果和蔬菜的类型。分析样本人群包括4806名男性和女性（25-75岁），他们完成了两次非连续的24小时回忆，每天消耗3.6 +/- 2.3份蔬菜和1.6 +/- 2.0份水果。卷心莴苣，蕃茄，炸薯仔，香蕉及橙子汁是最常食用的蔬果，占所有蔬果的近三成。在报告所述期间，39-42%的抽样人口消费了最受欢迎的生菜和西红柿。较少的受访者（16-24%）食用炸薯条、香蕉或橙子汁。在报告所述期间，只有3%的样本食用西兰花。白色土豆的平均消费量为每天1.1份，法式炸土豆为0.4份。番茄产品的消费量平均为每天0.5份，深绿色蔬菜的消费量平均为每天0.2份，柑橘、浆果或甜瓜的消费量接近每天0.8份。这些数据表明，美国人正在消费更多的水果和蔬菜，但深绿色和十字花科蔬菜的摄入量很低。
Epidemiological investigations repeatedly show that the regular consumption of dark green and cruciferous vegetables, tomatoes and citrus fruits in particular is related to reduced cancer risk. We used the 1994-1996 Continuing Survey of Food Intakes by Individuals to examine the types of fruits and vegetables consumed by Americans. The analytic sample population, which consisted of 4806 men and women (25-75 y old) who completed two nonconsecutive 24-h recalls, consumed 3.6 +/- 2.3 servings of vegetables and 1.6 +/- 2.0 servings of fruit daily. iceberg lettuce, tomatoes, French fried potatoes, bananas and orange juice were the most commonly consumed fruits and vegetables, accounting for nearly 30% of all fruits and vegetables consumed. The most popular items, lettuce and tomatoes, were consumed by 39-42% of the sample population during the reporting period. Fewer respondents (16-24%) consumed French fried potatoes, bananas or orange juice. Only 3% of the sample consumed broccoli during the reporting period. White potato consumption averaged 1.1 servings daily, with French fried potatoes representing 0.4 serving. Tomato product consumption averaged 0.5 serving daily, dark green vegetable consumption averaged 0.2 serving daily and citrus, berries or melon consumption amounted to nearly 0.8 serving daily. These data indicate that Americans are consuming more fruits and vegetables but that dark green and cruciferous vegetable intake is low.