Here's something my Compoundist (Pharamcist) told me. Taking 500mg's of "Fish Oil" is overkill and can ruin your social life. You need maybe one or two miligrams of fish oil to really help you. As some of you may know...fish foil SMELLS. Taking 500mg's over a long period of time will cause your sweat to smell horrible, your urine to smell dreadful and your hair to develop a dreadful sulfur smell. And like many antibiotics, fish oil has a compound in it that can turn your teeth orange! Yes, orange. It happen to me. I was on Amoxocilin for a month then went to whiten my teeth at the dentist...and beneath a coffee stains was orange. I had to get laser whitening to remove the orange. Later I had a root canal and the dentist showed me what the root coloring turns to..BRIGHT ORANGE. It's insane.