采用整群随机抽样方法 ,对贵阳市 52 4名 4 0～ 60岁的中年知识分子进行膳食营养状况调查。结果表明 :受试者的热能、维生素A、维生素B2 、Ca等多种营养素摄入不足 ,每人每日平均摄入热量占供给标准的 81 66% ,而Ca的摄入仅达 59 38%RDA。蛋白质、脂肪和碳水化合物的生热比分别为 14 71% ,2 6 79% ,58 50 % ,优质蛋白占总蛋白的 50 0 2 % ;动物脂肪占总脂肪的51 11% ;膳食铁的 72 54 %来源于植物铁 ;计算体质指数 (BMI)表明肥胖发生率较全国低 ;生化检验显示男性贫血患病率为 8 3 % ,女性为 2 1 9%。由此可见 ,贵阳市中年知识分子某些营养素的摄入还不足 ,膳食结构亦不合理 ,应进行营养指导提出改进措施 ,以改善他们的营养状况和健康状况 A total of 524 middle-aged intellectuals aged from 40 to 60 in Guiyang were enrolled in this study. The results showed that: the subjects of heat, vitamin A, vitamin B2, Ca and other nutrients inadequate intake per capita daily intake of calories accounted for 81 66% of the supply standard, while Ca intake was only 59 38% RDA. The heat production ratios of protein, fat and carbohydrate were 14 71%, 26 79% and 58 50%, respectively, and the high quality protein accounted for 50 0 2% of the total protein; animal fat accounted for 51 11% of the total fat; 54% were from plant iron. Calculating body mass index (BMI) showed that the incidence of obesity was lower than that of the whole country. Biochemical tests showed that the prevalence of anemia was 83% in males and 21.9% in females. Thus, some middle-aged intellectuals in Guiyang City, some nutrients intake is not enough, the diet is not reasonable, nutrition guidance should be proposed to improve measures to improve their nutritional status and health status