Department of Nutrition and Food Science, Faculty of Agriculture and Food Sciences, American University of Beirut, Beirut, Lebanon.
Food Chem Toxicol. 2010 May;48(5):1262-9. doi: 10.1016/j.fct.2010.02.020. Epub 2010 Feb 20.
This study assesses, by the Total diet study approach, the adequacy of micronutrient intake (Co, Cu, Fe, Mn, Ni, Zn) and the dietary exposure of a Lebanese adult urban population to two toxic elements (Cd, Pb). The foods that made up the average 'total diet' were derived from a previous individual consumption survey. A total of 1215 individual foods were collected, prepared and cooked prior to analysis. Analytical quantification was performed using inductively coupled plasma mass spectrometry. Average daily intakes of Co (11.4 microg/day), Cu (1104.19 microg/day), Fe (13.00 mg/day), Mn (2.04 mg/day), Ni (126.27 microg/day) and Zn (10.97 mg/day) were below toxicological reference values and were found to satisfy nutritional recommendations, except for manganese in men and iron in women. Average dietary exposure to Pb and Cd represented 3.2% and 21.7% of the respective provisional tolerable weekly intakes. Estimates of dietary intakes of iron appeared to be inadequate for 63% of adult women. These findings should constitute a current measure of assessing the adequacy and safety of foods consumed in Lebanon and may be a basis for future monitoring studies.
本研究采用总膳食研究方法评估了黎巴嫩城市成年人口的微量营养素摄入（Co、Cu、Fe、Mn、Ni、Zn）的充足性和两种有毒元素（Cd、Pb）的膳食暴露情况。构成平均“总膳食”的食物来自之前的个体消费调查。共采集、准备和烹饪了 1215 种个体食物进行分析。使用电感耦合等离子体质谱法进行分析定量。Co（11.4 微克/天）、Cu（1104.19 微克/天）、Fe（13.00 毫克/天）、Mn（2.04 毫克/天）、Ni（126.27 微克/天）和 Zn（10.97 毫克/天）的平均日摄入量低于毒理学参考值，且符合营养建议，除了男性的锰和女性的铁。Pb 和 Cd 的平均膳食暴露量分别占各自暂定每周可耐受摄入量的 3.2%和 21.7%。估计铁的膳食摄入量对 63%的成年女性来说似乎不足。这些发现应该构成目前评估黎巴嫩消费食品充足性和安全性的一个衡量标准，也可能是未来监测研究的基础。
