It would be very hard for you to take in too much. The only downside i am aware of, is a diet that is VERY high in omega 3 fatty acids can lead to a decreased ability to form blood clots. Internally this is a great thing because since omega 3 fatty acids are natural blood thinners, it lowers the chances of a blood clot forming in your arteries which means a decreased chance of heart failure. Externally it can be a bad thing if you are cut and cant get your body to stop bleeding. This is only in extreme cases though, such as the Inuit Indians whos diet revolves around whale blubber and meat (both of which are very high in omega 3 fatty acids). Word.