Five of the most commonly eaten fish that are low in mercury are shrimp, canned light tuna, salmon, pollock, and catfish.

This process is called biomagnification (U.S. government agencies recommend keeping your blood mercury levels below 5.0 mcg per liter (One U.S. study in 89 people found that mercury levels ranged from 2.0–89.5 mcg per liter, on average. Check local advisories about the safety of fish caught by family and friends in your local lakes, rivers, and coastal areas. For most people, the risk from mercury by eating fish and shellfish is not a health concern. Mercury falls from the air and can accumulate in streams and oceans and is turned into methylmercury in the water. Fish absorb the methylmercury as they feed in these waters and so it builds up in them. You need to check local advisories because some kinds of fish and shellfish caught in your local waters may have higher or much lower than average levels of mercury.
This depends on the levels of mercury in the water in which the fish are caught. 3. Exposure — even in small amounts — can cause serious health problems (Interestingly, seawater contains only small concentrations of methylmercury.In fact, larger, predatory fish may contain mercury concentrations up to 10 times higher than the fish they consume. If no advice is available, eat up to 6 ounces (one average meal) per week of fish you catch from local waters, but don't consume any other fish during that week.Follow these same recommendations when feeding fish and shellfish to your young child, but serve smaller portions.Mercury occurs naturally in the environment and can also be released into the air through industrial pollution. You can also contact your local health department for information about local advisories. Do not eat Shark, Swordfish, King Mackerel, or Tilefish because they contain high levels of mercury.

Therefore, certain people should take extra care.At-risk populations include women who are or may become Fetuses and children are more vulnerable to mercury toxicity, and mercury can easily be passed to a pregnant mother’s fetus or a One animal study revealed that exposure to even low doses of methylmercury during the first 10 days of conception impaired brain function in adult mice (Another study indicated that children exposed to mercury while in the womb struggled with attention, memory, language, and motor function (Additionally, some studies suggest that certain ethnic groups — including Native Americans, Asians, and Pacific Islanders — have a greater risk of mercury exposure due to diets traditionally high in fish (Pregnant women, breastfeeding mothers, young children, and those who regularly consume large amounts of fish have a higher risk of problems related to mercury exposure.In fact, it is generally recommended that most people eat at least two servings of fish per week.However, the Food and Drug Administration (FDA) advises people at high risk of mercury toxicity — such as pregnant or breastfeeding women — to keep the following recommendations in mind (Following these tips will help you maximize the benefits of eating fish while minimizing your risks of mercury exposure.© 2005-2020 Healthline Media a Red Ventures Company. All rights reserved.

Our website services, content, and products are for informational purposes only.
Healthline Media does not provide medical advice, diagnosis, or treatment. However, the health benefits of eating fish may outweigh these risks as long as you limit your intake of high-mercury fish.Mercury in fish does not affect everyone in the same way. © 2005-2020 Healthline Media a Red Ventures Company. The amount of mercury in fish and other seafood depends on the species and the levels of pollution in its environment.

When larger predatory fish eat smaller fish, their mercury levels rise because they take on all the mercury their prey had absorbed (called bioaccumulation). Those fish with much lower levels may be eaten more frequently and in larger amounts.For further information about the safety of locally caught fish and shellfish, visit the WebMD does not provide medical advice, diagnosis or treatment.WebMD Public Information from the Environmental Protection Agency If you eat a lot of fish one week, you can cut back for the next week or two. Yet, some fish and shellfish contain higher levels of mercury that may harm an unborn baby or young child's developing By following these 3 recommendations for selecting and eating fish or shellfish, women and young children will receive the benefits of eating fish and shellfish and be confident that they have reduced their exposure to the harmful effects of mercury. These large fish (swordfish, shark, king mackerel and tilefish) pose the greatest risk.

Other types of fish and shellfish may be eaten in the amounts recommended by FDA and EPA.If you want more information about the levels in the various types of fish you eat, see the Fish sticks and "fast-food" sandwiches are commonly made from fish that are low in mercury.Because tuna steak generally contains higher levels of mercury than canned light tuna, when choosing your two meals of fish and shellfish, you may eat up to 6 ounces (one average meal) of tuna steak per week.One week's consumption of fish does not change the level of methylmercury in the body much at all.


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