Sarathy R, Saraswathi G
Am J Clin Nutr. 1983 Aug;38(2):295-9. doi: 10.1093/ajcn/38.2.295.
Tender cluster bean pod (Cyamopsis tetragonoloba) is a vegetable commonly consumed in South India and contains 20% of guar gum on dry weight basis. Effects of incorporating this vegetable into a hypercholesterolemic diet of rats were studied. All test materials--cluster bean 0.5 and 2.5% levels, commercial guar gum (0.5%), cluster bean partially free from guar gum (1.6%), neutral detergent fiber of cluster bean (0.6%)--exerted a hypocholesterolemic effect and also lowered liver cholesterol concentration, but did not alter liver weights. Neutral detergent fiber of cluster bean and guar gum lowered cholesterol levels, but the effect did not appear to be additive when these components were present together in the whole cluster bean.
嫩瓜尔豆荚（瓜尔豆）是印度南部常见的一种蔬菜，干重基础上含20%的瓜尔胶。研究了将这种蔬菜纳入大鼠高胆固醇饮食中的效果。所有测试材料——0.5%和2.5%水平的瓜尔豆、市售瓜尔胶（0.5%）、瓜尔胶含量部分去除的瓜尔豆（1.6%）、瓜尔豆的中性洗涤纤维（0.6%）——均具有降胆固醇作用，还降低了肝脏胆固醇浓度，但未改变肝脏重量。瓜尔豆的中性洗涤纤维和瓜尔胶降低了胆固醇水平，但当这些成分同时存在于整个瓜尔豆中时，这种效果似乎并非相加的。
