There are side effects, and then there are side effects

Everyone knows the risks associated with taking certain supplements, even if they are not of pharmaceutical-grade strength or don't require a prescription. Some of the more common side effects might include headache, nausea and dizziness. However, some of the more heavily marketed and well-known dietary supplements out there will surprise you with some -- let's say strange -- side effects.

You see a product called MyAlli everywhere from television to the billboards to aisle 5 in your local drugstore or pharmacy. It's supposed to be capable of blocking up to 25 percent of all dietary fat that goes through your system, which sounds pretty neat. But then you read reports of users that experienced some disturbing side effects: anal leakage, oily stools and explosive diarrhea, for instance.