Maras Janice E, Bermudez Odilia I, Qiao Ning, Bakun Peter J, Boody-Alter Esther L, Tucker Katherine L
Dietary Assessment and Epidemiology Research Program, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA.
J Am Diet Assoc. 2004 Apr;104(4):567-75. doi: 10.1016/j.jada.2004.01.004.
To examine alpha-tocopherol intake and food sources of alpha-tocopherol in the US population relative to current Dietary Reference Intakes for vitamin E.
We analyzed food source and intake data from the 1994 to 1996 Continuing Survey of Food Intakes by Individuals (CSFII) with added values for alpha-tocopherol from the US Department of Agriculture National Nutrient Database for Standard Reference Release 15.
Data from 5,056 men and 4,703 women aged 20 years and older were obtained from the 1994 to 1996 CSFII.
The complex design and sampling weights of the CSFII survey were taken into account to calculate the mean alpha-tocopherol intake from diet, the SEM, and the percent of the Estimated Average Requirements (EARs) for alpha-tocopherol intake by age group and region.
Only 8.0% of men and 2.4% of women in the United States met the new EARs for vitamin E intake from foods alone. Regionally, only 5.8% of men and 2.1% of women in the South met these EARs, relative to 9.0% and 2.6%, respectively, in the Northeast. Top contributors of alpha-tocopherol for men and women included ready-to-eat cereal, sweet baked products, white bread, beef, oils, and salad dressing.
APPLICATIONS/CONCLUSIONS: The majority of men and women in the United States fail to meet the current recommendations for vitamin E intake. Many of the top contributors are not particularly high sources of alpha-tocopherol but are consumed frequently. Greater inclusion of sources such as nuts, seeds, and vitamin E-rich oils, could improve intake of alpha-tocopherol.
根据当前维生素E的膳食参考摄入量,研究美国人群中α-生育酚的摄入量及α-生育酚的食物来源。
我们分析了1994年至1996年个人食物摄入量持续调查(CSFII)中的食物来源和摄入量数据,并补充了美国农业部标准参考数据库第15版中α-生育酚的附加值。
从1994年至1996年CSFII中获取了5056名20岁及以上男性和4703名20岁及以上女性的数据。
考虑到CSFII调查的复杂设计和抽样权重,计算了饮食中α-生育酚的平均摄入量、标准误,以及按年龄组和地区划分的α-生育酚摄入量占估计平均需求量(EARs)的百分比。
在美国,仅8.0%的男性和2.4%的女性仅从食物中摄入的维生素E达到了新的EARs。按地区划分,南部仅5.8%的男性和2.1%的女性达到了这些EARs,而东北部分别为9.0%和2.6%。男性和女性α-生育酚的主要来源包括即食谷物、甜烘焙食品、白面包、牛肉、油和沙拉酱。
应用/结论:美国大多数男性和女性未达到目前维生素E摄入量的建议。许多主要来源并非α-生育酚特别高的来源,但食用频率较高。更多地纳入坚果、种子和富含维生素E的油等来源,可以改善α-生育酚的摄入量。