From the archives. For some reason I've been getting several email questions about konnyaku recently, so here is my definitive (I hope) guide to preparing konnyaku and konnyaku noodles, or shirataki. Originally published in January 2007.
The quintessential Japanese foods that (may) help you lose weight, are konnyaku and shirataki. Both are made from the same substance, the corm of the konnyaku or konjac plant. Shirataki is also known as konnyaku noodles, to further confuse things, but I prefer the original name which means "white waterfall". It's basically konnyaku shaped like long thin noodles.