Miller J
J Nutr. 1978 Jan;108(1):33-9. doi: 10.1093/jn/108.1.33.
Anemic rats were fed diets containing adequate quantities of all required nutrients, except iron, which was supplied by ferrous sulfate and/or corn grain. Diets were supplemented with the inorganic salt and corn in such a pattern that regression of hematological response on increments of ferrous sulfate intake could be calculated for 0, 25%, 50% and 75% dietary corn. Corn was added to the diets at the expense of starch which served only as a source of energy. Slopes of the regression lines for response (hemoglobin iron gain or final hemoglobin concentration) to ferrous sulfate intake were not altered significantly by inclusion of up to 75% corn in the diets. Results indicate that corn does not contain an inhibitor of iron absorption. Poor iron absorption from diets or meals in which corn provides a significant portion of the total food supply is probably due to a nutritional inadequacy of the corn, possibly its amino acid imbalance.
给贫血大鼠喂食含有除铁之外所有必需营养素的充足量的饮食，铁由硫酸亚铁和/或玉米粒提供。以这样一种方式用无机盐和玉米补充饮食，即可以针对0%、25%、50%和75%的日粮玉米计算血液学反应对硫酸亚铁摄入量增加的回归。玉米以牺牲仅作为能量来源的淀粉的方式添加到日粮中。日粮中包含高达75%的玉米时，对硫酸亚铁摄入量的反应（血红蛋白铁增加或最终血红蛋白浓度）的回归线斜率没有显著改变。结果表明，玉米不含铁吸收抑制剂。在玉米占食物供应总量很大一部分的日粮或餐食中铁吸收不良，可能是由于玉米的营养不充足，可能是其氨基酸不平衡。
