Kawatra A, Bhat C M, Arora A
Department of Foods and Nutrition, CCS Hayana Agricultural University, Hisar, India.
Eur J Clin Nutr. 1993 Apr;47(4):297-300.
The investigation was conducted on 11 healthy, non-anaemic adolescent girls of 16-18 years of age. A balance study was conducted in two trials of 3 weeks each on low- and high-fibre diets. The high-fibre diet consisted of the low-fibre diet plus 25 g isabgol husk. The mean diet and nutrient intakes of the subjects were approximately the same during both trials. Addition of isabgol (Isphaghula) husk to the low-fibre diet significantly increased the urinary excretion of phosphorus and iron; faecal excretion of calcium, phosphorus and iron; and the serum calcium, phosphorus and iron levels decreased significantly (P < 0.05). The apparent retention of calcium, phosphorus and iron was significantly (P < 0.05) lowered on the high-fibre diet, but the balances of these nutrients were positive. Thus the isabgol does not have a desirable effect on mineral levels.
该研究针对11名年龄在16至18岁之间的健康、非贫血青春期女孩进行。在两项为期3周的试验中，分别对低纤维饮食和高纤维饮食进行了平衡研究。高纤维饮食由低纤维饮食加上25克洋车前子壳组成。在两项试验期间，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洋车前子壳显著增加了磷和铁的尿排泄量；钙、磷和铁的粪便排泄量；血清钙、磷和铁水平显著降低（P < 0.05）。高纤维饮食使钙、磷和铁的表观保留率显著降低（P < 0.05），但这些营养素的平衡仍为正值。因此，洋车前子壳对矿物质水平没有理想的影响。
