Dennison B A, Rockwell H L, Baker S L
Mary Imogene Bassett Research Institute, Cooperstown, NY 13326-1394, USA.
J Am Coll Nutr. 1998 Aug;17(4):371-8. doi: 10.1080/07315724.1998.10718778.
Current recommendations call for most Americans, 2 years of age and over, to ent more fruits and vegetables.
To determine, in a sample of healthy children, the extent to which young children's diets include the recommended numbers of fruit and vegetable servings per day.
Cross-sectional study.
A general primary care health center in upstate New York.
One-hundred-sixteen 2-year-old children and 107 5-year-old children, who were scheduled for a non-acute visit, and their parent/primary caretaker (PPC) were recruited between 1992 and 1993.
For 168 children (94 2-year-old children and 74 5-year-old children), mean dietary intakes were calculated from 7 days of written dietary records, entered and analyzed using the Minnesota Nutrition Data System. The numbers of fruit and vegetable servings/day were calculated according to USDA definitions of serving sizes.
The 2-year-old children consumed the same amounts of fruits, 100% fruit juice, and total fruits and vegetables as the 5-year-old children (0.8 and 0.7 fruit servings/day, 1.0 and 0.8 juice servings/day, and 2.2 and 2.1 total fruit and vegetable servings/day, respectively). Fruit juice accounted for 54% of all fruit servings consumed and 42% of all fruit and vegetable servings consumed. Total fruit consumption (fruits plus juice) was correlated with carbohydrate intake (R = 0.46), and inversely correlated with total fat and saturated fat intakes (R = -0.48 and R = -0.36, respectively, both p < 0.0001) and with cholesterol intake (R = -0.21, p < 0.01). Citrus fruit and juice consumption was strongly correlated with vitamin C intake (R = 0.56, p < 0.0001). Total vegetable consumption was strongly correlated with beta-carotene and vitamin A intakes (R = 0.63 and R = 0.32, respectively, both p < 0.0001). Total fruit and vegetable consumption correlated with intakes of beta-carotene, vitamin A, vitamin C, fiber, and potassium (R = 0.55, R = 0.31, R = 0.56, R = 0.58, and R = 0.66, respectively, all p < 0.0001). Forty percent of 2-year-old children and 50% of 5-year-old children consumed < 2 servings/day of fruits and vegetables. Ninety-five percent of children consuming > or = 2 servings/day of fruits and vegetables met the RDA for vitamin C vs. 50% of those consuming < 2 servings/day (p < 0.001).
In this study, preschool-aged children consumed, on average, about 80% of the recommended fruit servings/day, but only 25% of the recommended vegetable servings/day. Low intakes of fruits and vegetables were associated with inadequate intakes of vitamin A, vitamin C, and dietary fiber, in addition to high intakes of total fat and saturated fat.
当前建议呼吁大多数2岁及以上的美国人摄入更多水果和蔬菜。
在一组健康儿童样本中,确定幼儿饮食中每日水果和蔬菜的摄入量达到推荐量的程度。
横断面研究。
纽约州北部的一家普通初级保健健康中心。
1992年至1993年期间招募了116名2岁儿童和107名5岁儿童,他们计划进行非急性就诊,以及他们的父母/主要照顾者(PPC)。
对于168名儿童(94名2岁儿童和74名5岁儿童),根据7天的书面饮食记录计算平均饮食摄入量,使用明尼苏达营养数据系统进行录入和分析。每天水果和蔬菜的份数根据美国农业部的份量定义进行计算。
2岁儿童摄入的水果、100%果汁以及水果和蔬菜的总量与5岁儿童相同(分别为每天0.8份水果、1.0份果汁、2.2份水果和蔬菜总量;0.7份水果、0.8份果汁、2.1份水果和蔬菜总量)。果汁占所有摄入水果份数的54%,占所有摄入水果和蔬菜份数的42%。水果总摄入量(水果加果汁)与碳水化合物摄入量相关(R = 0.46),与总脂肪和饱和脂肪摄入量呈负相关(分别为R = -0.48和R = -0.36,p均<0.0001),与胆固醇摄入量呈负相关(R = -0.21,p < 0.01)。柑橘类水果和果汁的摄入量与维生素C摄入量密切相关(R = 0.56,p < 0.0001)。蔬菜总摄入量与β-胡萝卜素和维生素A摄入量密切相关(分别为R = 0.63和R = 0.32,p均<0.0001)。水果和蔬菜总摄入量与β-胡萝卜素、维生素A、维生素C、纤维和钾的摄入量相关(分别为R = 0.55、R = 0.31、R = 0.56、R = 0.58和R = 0.66,p均<0.0001)。40%的2岁儿童和50%的5岁儿童每天摄入的水果和蔬菜份数少于2份。每天摄入水果和蔬菜份数≥2份的儿童中,95%达到了维生素C的推荐膳食摄入量(RDA),而每天摄入份数<2份的儿童中这一比例为50%(p < 0.001)。
在本研究中,学龄前儿童平均每天摄入的水果份数约为推荐量的80%,但蔬菜份数仅为推荐量的25%。水果和蔬菜摄入量低与维生素A、维生素C和膳食纤维摄入不足有关,此外还与总脂肪和饱和脂肪摄入量高有关。