魔芋性寒、辛```有毒```可活血化瘀```解毒消腫```寬腸通便```化痰軟堅(jiān)；主治瘰疬痰核、損傷瘀腫、便秘腹痛、咽喉腫痛、牙齦腫痛等癥。```````````````````````另外```魔芋還具有補(bǔ)鈣、平衡鹽分、潔胃、整腸、排魔芋毒等作用。`````````````````````````````````````
````````````````` 魔芋又稱蒟蒻```其主要成分為葡甘露聚糖```這種物質(zhì)屬可溶性多糖類```從營(yíng)養(yǎng)學(xué)的效果看```是一種理想的可溶性膳食纖維```超低熱量。`````````````````````````````````````````````
``````````膳食纖維在防治疾病方面有五大功效： 　
　
第一、食物纖維在腸胃吸收水分膨脹，體積增加，增強(qiáng)飽腹感，可溶性纖維形成了膠態(tài)，延緩了葡萄糖和脂肪的吸收。逐漸使血糖和血脂水平下降。從而可以有效防止高血糖、高血脂類疾病的發(fā)生。 　
　
第二、縮短食物在胃中停留的時(shí)間，一般來(lái)說(shuō)，普通食品需要28小時(shí)才能從腸道中排空，而富含食物纖維的食品只需要14-16小時(shí)，這樣大大減少了對(duì)有害物質(zhì)的吸收。 　　

第三、食物纖維還能吸附和稀釋致癌物及有毒物使之排除體外，從而在一定程度上具有防癌的功能。 　　

第四、纖維在腸內(nèi)酵解，導(dǎo)致腸內(nèi)PH值下降，影響厭氧菌群代謝活動(dòng)成為抗腫瘤發(fā)生的因子來(lái)源。 　　

第五、食物纖維還能促進(jìn)膽固醇轉(zhuǎn)化為膽酸，減少膽酸通過(guò)肝再循環(huán)，從而降低膽固醇，因而能抑止膽固醇上升。``````````````````````````
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````一般人群均可食用，尤其是糖尿病患者和肥胖者的理想食品