Study: A study sponsored by an environmental group has produced new evidence linking high fish consumption to potentially unsafe levels of mercury.
-- About 50 percent of the participants who ate seven or more 6-ounce servings a month of fish purchased in restaurants or stores exceeded the safety guideline of 1 part per million.
-- Almost 33 percent of those who ate four or more servings a month of canned tuna had mercury exceeding the guideline. The study questionnaire didn't differentiate between different types of tuna. The U.S. Food and Drug Administration warns that canned albacore has three times the mercury as chunk light.
-- Almost 36 percent of the people who ate three or more 6-ounce servings a month of locally caught fish exceeded the guideline.
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