Mercury in fish
Mercury occurs naturally in fish
Mercury occurs naturally in the environment and accumulates in the aquatic food chain, including fish, as methyl-mercury. All fish contain some methyl-mercury, but most fish in Australian waters have very low mercury levels.
If you have been eating more than 2-3 serves of fish in the past, you can follow the recommended number of weekly portions and your mercury levels will return to normal fairly soon.
Mercury levels will generally halve within several months, providing you follow the dietary advice and limit the amount of Shark (Flake) and Billfish (Swordfish, Marlin) you consume.
http://www.foodauthority.nsw.gov.au/
