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对包头市初中学生营养调查结果表明：膳食中维生素A、维生素B2及钙、锌摄入不足，热能、蛋白质的摄入能满足需要，热能营养素中脂肪供热偏高。学生生长发育状况良好，贫血率为8．7％．血钙、发锌低下率分别为24．9％和2．0％，VB1、VB2、VC的尿负荷试验结果分别有51．9％、62．0和64．5％的学生为不足和缺乏。体检中48．8％的学生皮肤干燥，提示存在体内维生素A缺乏。
Nutritional survey of junior high school students in Baotou City showed that dietary intake of vitamin A, vitamin B2, calcium and zinc was inadequate, and the intake of heat and protein could meet the needs. Student growth and development in good condition, the anemia rate was 8.7%. The urinary calcium and zinc hair loss rates were 24.9% and 2.0%, respectively. The urinary load test results of VB1, VB2 and VC were 51.9% and 62.0% and 64.5% of the students were deficient and deficient . 48.8% of students in the physical examination of the skin dry, suggesting the existence of vitamin A deficiency in the body.