Id like to clear this up before theres too much confusion. The only bad fatty worm for fish is Tubifix, A worm like White worms are thought commonly to be full of fat but they are not, there was a study i read about them a little while ago done by a university that said, what little fat they contain is not saturated fat which is the bad kind of fat that causes the problems, infact the fat they contain is quiet healthy, full of nutrients that alot of other foods cannot supply for fish.
Shae