A new study finds that tuna accounts for over one-third of total methlymercury exposure from seafood consumption which was a key finding in the April 2010 edition of Environmental Research  by Dr. Edward Groth III, an MPP consultant.  “Canned tuna is the number one fish consumed in the U.S. today,” said MPP director Bender.  “It is also the number one mercury exposure risk.”  The study found that two-thirds of the seafood and nine of the 11 most consumed fish are low in mercury, as one can see in this chart.   In addition, new research appearing in Biology Letters today “…provides insights into healthier consumption, using “….DNA as a tool to uncover patterns of species-specific bioaccumulation.”