Today I tested out some Konnyaku noodles. As you can see, very little reaction. About the same amount as, say, a cucumber. This brand probably isn't the best quality as there were some small specks of starch. Not enough starch to be a problem for most people following the NSD. Safer than almonds with skin on (yes the skins have a little starch)
Many of these products coming from China are terribly confused about the contents of their own products. Below we have another packet of Konnyaku that is labelled incorrectly as "Pice Vermicelli". No pice in this, nor is there any rice either.