Mercury is a heavy metal that’s found naturally in the earth’s crust. But there’s nothing natural about the amount of mercury that’s released into the atmosphere these days: 104 metric tons a year, according to the EPA. Coal-fired power plants, which generate over half of the U.S.’s electricity, are the nation’s largest source of mercury emissions. But mercury is also emitted from municipal and hazardous waste combustors, medical waste incinerators, and chloralkali plants (chlorine-producing factories) and it finds its way into our water via the improper disposal of batteries and other mercury-containing products such as thermometers, thermostat switches and even compact fluorescent light bulbs.
From these combined sources, elemental mercury accumulates in lakes, streams and oceans, where it converts into methylmercury and is absorbed by fish. Large predatory fish—those that live longest and are higher on the food chain, such as tuna, swordfish, shark, king mackerel, and tilefish—contain more mercury than small fish.
But as I report in the June issue of Body + Soul, the list of high-mercury fish is much longer than the FDA would have us believe—and it's not just pregnant women and children who need to beware. Jane Hightower M.D., author of the riveting book Diagnosis: Mercury: Money, Politics, and Poison, discovered through diligent detective-work that many of her patients—otherwise healthy adults—were suffering from mercury toxicity. The reason? Thinking that fish (packed as it is with brain-boosting omega-3's) is healthier than meat, they were eating it (sushi, fresh swordfish steaks, you name it) two to three times a day.
I wouldn't doubt it if Jeremy Piven really did have mercury poisoning. His symptoms—extreme fatigue, dizziness, and neuro-muscular dysfunction—are the very ones that Hightower has seen in her San Francisco-based patients. Once again, moderation seems to be the key to a healthy life. Meanwhile, instead of listening to the FDA, I'll be consulting the Environmental Working Group's sensible, fact-based list of fish to avoid.
Hello Hannah! It's been a while...Joan's site just sent me here with a link, and it's wonderful to see your articles/posts. I have been writing about TCM nutrition as well: www.thespicedoc.com
Hope all is well, and I'll keep checking in!
Nicole
Posted by: Nicole Sheldon | 08 June 2009 at 10:05 PM