Fish are often contaminated with high levels of mercury, which can damage fetal nervous system development. The Natural Resources Defense Council rates cod as having a moderate mercury content and recommends that you eat a maximum of six servings per month.
Provided herring is sparkling-fresh and properly filleted, you're in for a treat. Photograph: Jill Mead for the Guardian Herring used to be a staple fish in these isles, but it has long since been sidelined by more demure species that are less full-on fishy. That's not the case elsewhere ...
The mercury found in fish is methylmercury. First, mercury is released into the air and then settles onto the land and into the water. Bacteria and other microorganisms convert the mercury into methylmercury. Then, fish and shellfish in the water begin to absorb it. Fish that eat other fish and who live longer have higher levels of methylmercury.
Tilapia has risen to the top as a seafood staple on American dinner tables. According to the National Fisheries Institute, the mild fish has climbed to become the fourth most eaten seafood in the U.S., behind only shrimp, salmon and canned tuna. “We never intended to paint tilapia as the cause of anything bad.
Tuna is a healthy fish, but it can contain mercury, which can be a concern for babies and young children. Learn how much tuna you should eat. Tuna is a healthy fish, but it can contain mercury, which can be a concern for babies and young children.