I did a search on nutrition and supplements and I encountered the word chondroitin. I always thought this was some kind of alien in some science fiction movie, but in fact it's something that really exists! Funny how you can have words in your mind that have a totally different meaning in real life. I must have heard it somewhere sometime and somehow I associated that to a science fiction movie. It probably came up in a commercial break of such a movie, otherwise I think I would have never had that association with the word.