Looking back on this and now exploring the topic of mercury poisoning, perhaps I should have taken my mother more seriously and done some research regarding the topic and how safe crab is for pregnant women and children. According to "Get the Word on Seafood That's Safe to Consume", Dungeness crab contains a moderate amount of mercury and should only be consumed by pregnant or nursing women and children once a month. We rarely have crab these days. Only when we are by the coast and can pick it up fresh which only happens a couples times a year but it's still good information to have and know. I think that is extremely important to know which seafood's contain what amount of mercury. Seafood is a great part of a balanced diet and people need to know that as well as being educated about what seafood to eat, when to eat it and how much of it to eat safely.