Toxicity in Fish

Warning: Most Fish Now Contain Mercury!-Chilean sea bass
- A federal study conducted by the US Geological-Cod
Survey (released in August 2009) found traces of-Croaker
methylmercury, a form of mercury that is readily-Grouper
absorbed, in every fish sampled in 291 streams-Halibut
across the country.-King Mackerel
- In around a quarter of those fish, the amount of-Lobster (Maine)
mercury was above the level set by the-Mahi Mahi
Environmental Protection Agency (EPA) as safe for-Marlin
human consumption.-Monkfish
- More than two-thirds of the fish exceeded the EPA-Largemouth bass
level for fish-eating mammals, such as mink and-Orange Roughy
otters.-Oysters (Eastern, Gulf coast)
Where Is The Mercury Coming From?-Pike
The leading source of mercury is pollution from-Pollock
coal-burning power plants, which accounts for 40%-Salmon (Great Lakes)
of all domestic mercury produced as by-products of-Sea trout
human activities. Mercury is released from the-Shark
smokestacks of coal-fired power plants, cement kilns,-Skate
and certain types of mining activities, and deposited-Snapper
in rain and snow, making its way into the water.-Swordfish
From there, it is converted by bacteria into-Tilefish (golden bass/snapper)
methylmercury, which is absorbed by fish, especially-Tuna steaks and canned tuna
in fish that are up the food chain.-Walleye
The larger the fish, the likelier they are to have high-Whitefish
levels of this toxin. The National Resources DefenseNote: The bold ones are among the worst varieties.
Council points out that predatory fish, such as shark,Farm-Raised Fish: Not An Environmentally-Friendly Or
swordfish, and mackerel, can have mercuryHealthy Alternative
concentrations that are 10,000 times higher than thatFarm-raised fish contributes to the degradation of
of their surrounding environment!marine ecosystems.
Mercury Is A Major Health Risk- Farm-raised fish are fed great quantities of fish
When you eat contaminated fish, the mercurymeal, which comes from wild-caught fish. The Organic
poisons your brain and nervous system. This isConsumers Association pointed out that for the 10
especially dangerous for pregnant women and smallspecies of fish most commonly farmed, it takes 1.9
children. Mercury in the mother's body passes to thekg of wild fish to produce 1 kg of farm-raised fish.
fetus where it accumulates. It can also pass from theThe growing environment at fish farms is similar to
mother to a nursing infant through breast milk. Ifthe animal factory farms everywhere - overcrowded,
fetuses or infants are exposed to mercury, it cansickly, infected animals being fed whatever it takes
cause:to grow them as large as possible in as short a time
- Mental retardationas possible.
- Cerebral palsy- Farm-raised fish, like factory-farmed meat, is
- Deafnesspumped full of antibiotics, hormones, and even
- Blindnesschemicals to change their color, such as to make
Even in low doses, mercury can interfere with asalmon appear pink.
child's development, leading to shortened attention- Studies have consistently found levels of PCBs,
span and learning disabilities.dioxins, toxaphene, and dieldrin, as well as mercury,
In adults, mercury poisoning can be serious too,to be higher in farm-raised fish than wild fish.
causing psychological, neurological, and immunologicalTherefore, steer clear from farmed-raised fish as
problems. It is linked to:they are clearly not a healthy food choice.
- Trouble with blood pressure regulationHealthy Choices
- Fertility problemsFortunately, there are still some safe, unpolluted
- Memory and vision lossareas out there, such as in certain pristine waters in
- Fatiguethe Arctic, Antarctic, and Alaskan waters. Safe
- Neuro-muscular dysfunctionchoices of fish to eat regularly are:
Further, mercury bonds very firmly to structures in- Wild Alaskan salmon
your central nervous system. Mercury has an- Smaller fish, like anchovies, herrings, and sardines,
extremely long half-life (time to reduce level by 50%)which are lower in the food chain and less likely to be
of somewhere around 15 years in the body.contaminated.
Types Of Seafood To AvoidFinally, if you decide not to risk your health by eating
Sadly, most fish is no longer a healthy food choice.contaminated fish, you should remember that your
Contamination of our oceans and waterways is sobody still has a requirement for omega-3 fats.
severe that it is no longer safe to eat the followingOmega-3 fats support heart health, reduce
fish and shellfish on a regular basis, especially if youinflammation, improve cellular integrity, and are vital
are pregnant or nursing:for memory and nervous system functioning.
-Bass (black, stripped)- Take a high quality fish oil supplement, one that is
-Blue crab (Gulf coast)free of detectable levels of harmful contaminants like
-Bluefishmercury, dioxins, lead, and PCBs.
-Catfish (wild)