A question was asked yesterday by a man with atrial fibrillation, if he could take fish oil while he is on blood thinners. My response was “yes” but with caution.
From Livestrong: Fish oil does thin the blood in similar ways to blood thinners, notes leading health and medical writer Jack Challem in his book, “The Inflammation Syndrome.” This effect happens through the prevention of the platelets found in blood from sticking together and forming clots. Challem adds that the blood-thinning effects may be magnified if you are taking natural blood-thinners, such as vitamin E or gingko. Therefore, it’s important to tell your doctor if you are taking fish oil.
From Heart MD: Modest amounts of fish oil, say 1–2 grams daily, generally can be tolerated even if you are taking prescription blood thinners. However, doing this is not without some risk—so it’s absolutely essential that you be up front with your doctor about the fish oil products you’re taking and how much, to avoid unsafe drug interactions. I cannot emphasize this enough. You must work collaboratively with your physician and regularly monitor the clotting agents in your blood.