Konjac that’s also called devil’s tongue is a Japanese food.
It is made from konnyaku imo that contains a deadly poison, calcium oxalate.
If we take in the poison, our mouth and throat will become swollen, then we will choke.
Finally we will be in coma or die as the case may be.
In order to remove poison and eat konjac, we have to do many processing steps.
The processed konjac have a unique texture, but there is no nutrition or calories.
Because of the small amount of calories, it is often introduced as a diet food.
I don’t know, we don’t know why we have become to eat it.
It is said that the reason might be due to food crisis.
