全军的营养卫生调查现场工作已结束,现就营养卫生调查中出现的几个问题,谈谈我们的初步体会。一、关于膳食调查膳食调查是了解热能及各种营养素摄取量的一种常用手段。其通用而较准确的方法是称量法。要使称量法调查资料准确、可信,我们体会主要应抓好以下3个方面的称重。 (一)可食部的称重:可食部重应是处理好后即称重,称后再洗切,这样称出的可食部重可以反映食进食物的重量。在调查时称可食部重会出现以下两种情况:一是处理好,洗好,切好后称重;二是调查人员不在,没有称重,而在烹调后再根据买来的毛重估计可食部重。实践表明第一种方法不妥,因食物洗好、切好后再称,在食物的表面就沾有很多的水份,尤以叶菜类使重量增加更明显,使所得数据偏高。第二种方法所得数据更是不可靠的,因各种食物及处理方法因炊 The army’s nutrition and health survey site work has ended, and now on the nutrition and health survey of several issues that arise, to talk about our initial experience. First, on the diet survey Dietary survey is to understand the heat and various nutrients intake of a common means. The common and more accurate method is the weighing method. To make the weighing method accurate and credible, we understand that the following three aspects should be weighed. (A) the edible part of the weighing: Edible part should be handled after weighing, weighing and then wash, so edible part weighing can reflect the weight of food into the food. Edible part of the survey said the following two situations: First, handle well, washed, cut and weighed; Second, the investigators are not, not weighing, and then calculated according to the gross weight of the purchased after cooking Edible part weight. Practice shows that the first method is wrong, because the food was washed, cut and then said that the surface of the food was stained with a lot of water, especially leafy weight to make the more obvious increase in the data obtained. The second method of data obtained is even more unreliable, due to a variety of food and processing methods due to cooking