Some people know konjac, but they don’t know shirataki.  
Actually Shirataki is the another name of Konjac.

Shirataki is a Japanese name, Japanese eat shirataki almost every meal.
The word "shirataki" means white waterfall, it is called 白滝 in Japanese.  
As we all know, they eat the shirataki knots the most.

  

So Konjac noodles is also called Shirataki noodles, Konnyaku noodles,
It is made from konjac root. They are same substance.

It is health noodles, very different from normal noodles, low calories, low carb,
sugar free, fat free.  it is good for peope's body.