Kelsay J L, Behall K M, Prather E S
Am J Clin Nutr. 1979 Sep;32(9):1876-80. doi: 10.1093/ajcn/32.9.1876.
Intakes and excretions of calcium, magnesium, iron, and silicon were determined for 12 men consuming controlled diets containing fruits and vegetables (high fiber diet) or fruit and vegetable juices (low fiber diet) for periods of 26 days. Magnesium and iron were added to the low fiber diet to make the two diets as equivalent as possible in these respects. Mean daily intakes on the low and high fiber diets, respectively, were: calcium, 1070 and 1166 mg; magnesium, 355 and 322 mg; iron, 21.8 and 26.4 mg; silicon, 21.6 and 45.8 mg. Mean daily balances on the low and high fiber diets repectively, were: calcium +72 and -122 mg; magnesium, +28 and -32 mg; iron, +3.8 and +4.6 mg; silicon, -3.5 and -14.6 mg. Calcium magnesium, and silicon balances were significantly lower on the high than on the low fiber diet (P less than 0.01).
对12名男性进行了钙、镁、铁和硅摄入量及排泄量的测定。这些男性食用控制饮食，其中一部分人食用含水果和蔬菜的饮食（高纤维饮食），另一部分人食用水果和蔬菜汁（低纤维饮食），为期26天。在低纤维饮食中添加了镁和铁，以使两种饮食在这些方面尽可能等效。低纤维饮食和高纤维饮食的每日平均摄入量分别为：钙，1070毫克和1166毫克；镁，355毫克和322毫克；铁，21.8毫克和26.4毫克；硅，21.6毫克和45.8毫克。低纤维饮食和高纤维饮食的每日平均平衡量分别为：钙，+72毫克和 -122毫克；镁，+28毫克和 -32毫克；铁，+3.8毫克和 +4.6毫克；硅，-3.5毫克和 -14.6毫克。高纤维饮食中钙、镁和硅的平衡量显著低于低纤维饮食（P小于0.01）。
