Godara R, Kaur A P, Bhat C M
Am J Clin Nutr. 1981 Jun;34(6):1083-6. doi: 10.1093/ajcn/34.6.1083.
The investigation was conducted on nine healthy, nonanemic adolescent girls of 16 to 18 yr of age. Balance studies were carried out for 21 days each on low and high fiber diets. The high fiber diet contained 21 g pure cellulose added to the low fiber diet. Food, fecal, and serum samples of the subjects were analyzed for calcium, phosphorus, and iron. Except for fiber and cellulose the mean diet and nutrient intakes of the subjects were approximately the same during both trials. Addition of cellulose to low fiber diet significantly increased the fecal excretion of calcium, phosphorus, and iron and the serum calcium, inorganic phosphorus and iron levels decreased significantly (p less than or equal to 0.01). These studies show that cellulose lowered the serum calcium, phosphorus, and iron levels. Therefore, high cellulose intakes may not be advisable.
该研究针对9名年龄在16至18岁的健康、非贫血青春期女孩进行。分别对低纤维饮食和高纤维饮食进行了为期21天的平衡研究。高纤维饮食是在低纤维饮食中添加了21克纯纤维素。对受试者的食物、粪便和血清样本进行了钙、磷和铁的分析。除纤维和纤维素外，在两个试验期间受试者的平均饮食和营养摄入量大致相同。在低纤维饮食中添加纤维素显著增加了钙、磷和铁的粪便排泄量，血清钙、无机磷和铁水平显著降低（p≤0.01）。这些研究表明纤维素降低了血清钙、磷和铁水平。因此，高纤维素摄入量可能不可取。
