The seeds of this plant , widely used as a mild bulk laxative and sometimes added to foods as a dietary source of soluble fiber 亚麻籽车前的籽这种植物的种子，作为温和的散装缓泻剂而被广泛使用，有时加在食物中作为可溶纤维的饮食上的来源
2.
The problem : the procedure requires fasting , consumption of powerful laxaties , anaesthesia and the insertion of a optical scope in the rectum . it also carries the risk of a punctured colon 问题在于：筛查过程要求快速，需要在麻醉下将强缓泻剂从光镜一并置入直肠，且具有结肠穿孔风险。
