魔芋

魔芋，又叫蒟蒻（jǔruò），含有35%的淀粉、3%的蛋白质、以及多种维生素和钾、磷、硒等矿物质元素，还含有人类所需要的魔芋多糖，即葡甘露聚糖高达30%。

葡甘露聚糖是一种高分子多糖，属于可溶性膳食纤维，食用后进入人体，很容易和水结合成溶胶。而这种溶胶吸水膨胀率可达几十到几百倍，食用后消化吸收慢，容易给人吃饱的感觉，热量又低，从而减少人们摄入食物的数量和能量，有利于控制人的体重，达到自然减肥效果。

魔芋的特点是低热量、低脂、高纤，无胆固醇，每百克魔芋粉含有七十多克纤维素，含量远远高于其他食物。营养师推荐成年人每天膳食纤维的摄入量为25g-30g，如果吃魔芋的话，50克魔芋就能满足一天膳食纤维的需求量。

很多人疑惑魔芋是不是就是芋头？

Amorphophallus konjac, also known as konjac, contains 35% starch, 3% protein, various vitamins, potassium, phosphorus, selenium and other mineral elements, and also contains konjac polysaccharide, namely glucomannan, which is needed by human beings, up to 30%.

Glucomannan is a kind of high molecular polysaccharide, which belongs to soluble dietary fiber. After eating, it can easily combine with water to form sol. However, the water absorption expansion rate of this sol can reach tens to hundreds of times, and it is slow to digest and absorb after eating, which makes people feel full and has low heat, thus reducing the amount and energy of food consumed by people, helping to control people's weight and achieving the natural weight loss effect.

Konjac is characterized by low calorie, low fat, high fiber and no cholesterol. Every 100 grams of konjac flour contains more than 70 grams of cellulose, which is much higher than other foods. Dietitians recommend that the daily dietary fiber intake of adults is 25g-30g. If you eat konjac, 50g konjac can meet the daily dietary fiber demand.

Many people wonder if konjac is taro.