As healthy as eating seafood is, there is no doubt that some fish contain toxins that can hurt us. industrial use of mercury that gets into our water supply is the chief culprit, mostly affecting children and women of child-bearing age. Now a new study in Texas suggests that there is a link between mercury and autism, a disorder that has skyrocketed in recent years.

The bottom line: If you catch fish, pay attention to your community's fish consumption guidelines, which are usually available online with your state or local health department. And when you buy fish, know that species higher on the food chain -- striped bass, tuna, swordfish, sharks -- will often have higher mercury content that little fish such as mackerel or shad.