Konjac

Konjac is a type of root vegetable that grows in Asia. It looks kind of like a potato, but it's a different color and texture.

Some people use konjac roots to make a special type of noodle that is really low in calories. These noodles are called shirataki noodles.

Even though shirataki noodles are really low in calories, they can still help you feel full. That's because they are full of a type of fiber called glucomannan. This fiber can absorb a lot of water and expand in your stomach, making you feel like you've eaten more than you actually have.

Some people also use konjac to make a type of jelly. This jelly is often used in desserts or drinks.

One thing you should know about konjac is that it's not safe to eat raw. It can actually be dangerous because it can cause choking. So always make sure that you cook konjac thoroughly before you eat it.