Background and objectives: Overweight and obesity increase the risk of hypertension, type 2 diabetes, and other metabolic disorders and are increasing in Japan, particularly among men. Several prospective studies have suggested that high vegetable intake is inversely associated with weight gain. Here, the association between vegetable consumption and weight gain in a group of food manufacturing workers over the course of one year was investigated.
Methods and study design: The study was a one-year cohort study of the nutrition and lifestyle survey. The study population consisted of 900 and 910 Japanese employees (aged 19-60 years) from a manufacturing company located in Musashino City, Tokyo, Japan, that were administered the same validated brief self-administered diet history and dietary lifestyle questionnaire in 2006 and 2007, respectively. Clinical examinations of body weight were also performed to assess changes in weight. We analyzed participants who responded in both 2006 and 2007 (n=478).
Results: Risk of weight gain of more than 3 kg was significantly lower in the group consuming the most vegetables than in the group consuming the least, and this difference remained significant after adjustment for baseline age, sex, and consumption of other foods (p for trend=0.028).
Conclusions: Weight gain was inversely associated with high consumption of vegetables. Encouraging Japanese employees to consume more vegetables may be an important strategy in controlling weight gain and preventing metabolic syndrome.
背景与目的：超重和肥胖会增加高血压、2 型糖尿病和其他代谢性疾病的风 险，这种现象在日本呈现增加趋势，特别是男性。一些前瞻性研究表明，高的 蔬菜摄入量与增重呈负相关。该研究对一家日本制造公司的员工蔬菜摄入量和 增重之间的关系进行了为期一年的研究。方法与研究设计：该研究是一个为期 一年的营养和生活方式的调查研究。在2006 和2007 年，对日本东京武藏野市 一家制造公司的900 和910 名日本员工（年龄在19～60 岁）分别对其进行简 易饮食史和饮食生活方式的问卷调查，同时也进行体重的临床检查以便评估体 重的变化。我们分析了在2006 和2007 均参与调查的478 名对象。结果：摄入 蔬菜最多的人群中，增重超过3 千克的风险显著低于摄入蔬菜最少者；在调整 基线年龄、性别和其他食品消费量的影响后，这种差异仍然存在（趋势 p=0.028）。结论：增重与高的蔬菜摄入量呈负相关。鼓励日本员工多吃蔬 菜，可能是控制增重和预防代谢综合征的重要策略。.