Konnyaku is a wonderful food for anyone on any kind of diet - provided, of course, that you like it. I do like it - it has a very unique chewy-bouncy texture. I have described konnyaku and its noodle-shaped cousin, sharataki, before, but briefly, konnyaku is a grey to white colored, gelatinous mass which basically consists of water and fiber. It has almost no calories. Right out of the package, konnyaku and shirataki have an odd smell, but if you treat it properly (directions given below) you can get rid of that and just have the flavorless yet curiously interesting mass of goo that is going to fill up your belly in a very useful way.
This is something very easy to make in a jiffy. It’s basically taking a classic Italian spaghetti recipe and applying it to konnyaku. You could make this with shirataki too, in which case it will actually look like noodles, but I rather prefer the chewier texture of konnyaku. The only thing to watch for if you are on a diet is the amount of olive oil and optional cheese you use.
This may not be well known outside of the two respective countries, but there are pretty strong historical and cultural ties between Japan and Brazil. There was a wave of emigration from Japan to Brazil in the early part of the 20th century and later on around the ’50s and ’60s. And in the last 30 years, many Brazilians of Japanese descent (people of Japanese descent born in another country are called nikkei-jin) have in turn emigrated to Japan to fill labor shortages. Perhaps because of this, a few years ago one of the staples of the Brazilian diet, pao de queijo, little cheese breads, became very popular. While their popularity may have descended a bit from their peaks (Japan tends to be periodically swept up by big food or fashion trends, which after a time get dropped without warning when people move onto the next thing, but that’s another story), they are still made by bakers throughout Japan.
I think that pao de queijo appeals so much to the Japanese palate because they are small, round and cute, and have a distinctive gooey-sticky-glutinous kind of texture inside. This texture is called mochi mochi, after mochi, the very gooey-glutinous rice cakes.