What about potential toxic residues found in virtually all fish and shellfish?

As of 2003, almost 90% of all shrimp consumed in the United States were imported from Asia and Latin America, with China, Vietnam, and Thailand serving as the three top suppliers. These shrimp imports totaled about 1.5 billion pounds! U.S. shrimp farms produce approximately 12 million pounds of shrimp each year, but that amount is less than 1% of the total shrimp imports. This huge imbalance between imported and domestically produced shrimp can be problematic due to problems with contamination in certain Asian fish farming operations and also with lack of sustainable practices on the part of many fish farming operations.

Check this out: Seafood Watch Pocket Guide...........

http://www.montereybayaquarium.org/cr/seafoodwatch.aspx.

When it comes to purchasing shellfish-and all types of fish well-I also encourage you to ask your grocers, or fishmongers, or whoever is responsible for providing your fish, as many questions as necessary to get an idea about its overall quality and sustainability.

whfoods.org