Mercury is a heavy metal that exists in many places throughout the earth. As a result, some of the food we eat contains traces of mercury. Fish in particular absorb copious amounts of mercury as they swim in the water. This is due both to the natural occurrence of mercury and various human actions that exacerbate the situation. While slight amounts of mercury usually will not have a noticeable effect on the human body, prolonged mercury exposure through food may lead to serious health problems such as methylmercury poisoning, vision problems and neurological disturbances in fetuses and infants.
Foods That Contain High Levels of Mercury
Although many foods may contain traces of mercury, fish and shellfish are known to have the most mercury overall. As mercury enters the water supply, all fish absorb some of it into their bodies. Fish that are higher on the food chain have especially high mercury levels since they consume smaller fish. Therefore, it’s no surprise that the largest fish often contain the most mercury. High-mercury fish include swordfish, shark, king mackerel and tile fish. Certain types of tuna also contain mercury well above U.S. Environmental Protection Agency (EPA)’s limits of 0.1 microgram per 2.2 pounds of body weight.
Read more: Foods Containing Mercury | eHow.com
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