Getting a lot of mail on what to do about Omega 3s? Why is the FDA telling pregnant women to eat more fish (hello, tuna lobby!) while the EPA says all fish contain at least some mercury and women of childbearing age should limit their intake of fish.
You do need Omega 3s. Good news is the fish oil doesn't seem to be contaminated (yet!). I have heard that the liver oil is not a particularly notorious place for heavy metals to be stored--tends to get more into the meat, and don't for get that FARMED FISH has NO omega 3s at all. So check this out:
ConsumerLab.com announced today that tests of 41 omega-3 fish oil supplements (including 3 marketed for pets) showed safe levels of mercury and PCBs. However, three products did not contain their claimed amounts of EPA and DHA – key omega-3 fatty acids – or were spoiled. EPA and DHA are associated with a reduced risk of heart disease, are of potential benefit in treating diseases such as rheumatoid arthritis, and may reduce the risk of prostate cancer. DHA may also be useful to infants and mothers due to its role in the functioning of the brain and retina in the fetus and infants and possibly reducing the risk of premature delivery.Read more here: Dietary Fish Oil Supplement - Omega 3 Fish Oil Safer Than Fish
Vegans can look to flax for their Omega 3s.