omega-3'sI know there is good reason to be worried about mercury levels in fish, however, studies I have read testing various brands of fish oil placed them all well within safe levels of exposure, most didn't have any toxic chemicals whatsoever. I've been taking fish oil for the past 3 months, as I read it is great for baby's brain development, as well as memory (ie my own brain) in the mother. I would highly recommend it. Omega-3's are great for your heart, your brain. I've never heard of there even being any negative side effects. Mostly I'm shocked everyone's doctor isn't out recommending/requiring that they take it! The overwhelming evidence is that it is very, very beneficial.