If you don't live near an Asian grocer and want to buy Shirataki noodles OR konnyaku jelly (that's the startchy form of shirataki, which can be added to soups, stews, and stir fried) online, here are a few resources:
If you're in the US or Canada: http://www.asianfoodgrocer.com/category/shirataki-noodles
If you live in Europe or the UK: http://www.japancentre.com/
Please read the directions on the packet, many shirataki and konnyaku noodles give off a strange odor and need to be boiled before hand.
Please also consider this a yay for shirataki and konnyaku! Both are very high in fibre, contain no gluten, are very low-carbohydrate and either free or extremely low in calories.
Shiratake Japanese 100% konjak asian yam noodle is 97pc water and 3pc fibre. It has the uncanny property of expanding in the stomach to give the effect of being very full. It is 20cal per 100g. I find it useful for weight loss and constipation. Also for piles as the fibe is very smooth at the exit end, compared with other products such as bran does not aggravate the situation at a time one should increase fibre intake. After a lifetime of discomfort I think this may well be the ultimate gut prouct as it is a meal, noodle comes wet- in a water bag, so preparation is minimal. Please note it has no nutritional value at all so add to meals with care to ensure balance. Carried by oriental shops and health shops, Japanese and Korean in particular, though Chinese will know what you mean at the very least.