DEAR DR. BLONZ: You often mention the benefits of eating fish like salmon or sardines, which are high in omega-3 fats. I have deep vein thrombosis, and have been taking Coumadin. But during a recent call with friends, they warned me that it could be dangerous, and that I should avoid all omega-3 fats from fish or supplements. That does not mean you should stop or avoid them; the key is to be careful when making changes to your routine intake -- whether increasing or decreasing. The omega-3 fats at issue include EPA and DHA (eicosapentaenoic acid and docosahexaenoic acid, respectively), which are found in fish and other seafood.