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前言营养需要量是以保持和增强人民健康,一日应摄取何种和若干营养素为宜的指标。日本的需要量,参考有关新的研究成果、饮食生活的变化、健康和疾病的新概念等,每4～5年修定一次。这次的修定是供1985～1990年使用。此次修定的内容是: 1.制定不同日常生活内容的需要量。其原因是,近年来工厂的机械化及进一步节省体力,劳动时的身体活动强度降低,相反,劳动时间以外的身体活动对人民的生活活动强度产生较大的影响。因此,以日常生活的内容取代过去的不同劳动强度而断判生活活动强度(表1),制定了老年人不同生活活动强度的需要量(表2)。
Foreword Nutritional requirements are indicators that should be taken and what nutrients are appropriate on a daily basis to maintain and enhance people’s health. Japanese needs are revised every 4 to 5 years with reference to new research findings, changes in diet, new concepts of health and disease. This revised revision is for use from 1985 to 1990. The revised content is: 1. To develop the content of different needs of daily life. The reason is that, in recent years, mechanization of the factory and further physical stamina reduce the intensity of physical activity during labor. On the contrary, physical activities other than working hours have a greater impact on people’s intensity of living activities. Therefore, taking the contents of daily life as a substitute for the different labor intensity in the past and judging the intensity of life activity (Table 1), the requirements for the intensity of different life activities of the elderly are formulated (Table 2).