Mercury contamination in big fish such as sharks, swordfish and certain types of tuna is on the rise, and smaller traces of the toxic metal may be enough to cause restricted brain development or other health problems for humans who eat them. Levels of exposure that are defined as safe by the official limits, are actually having adverse effects.　These are not trivial effects, these are significant effects. There does appear to be evidence now, fairly persuasive evidence, that adverse effects occur from normal amounts of seafood consumption. The European Union recommends pregnant or breastfeeding women not to eat tuna more than twice a week. The US Food and Drug Administration … Continue reading Paul Ames